Payment processor disputes: Stripe, PayPal, Square

I am Sergei Tokmakov, a California attorney (CA Bar #279869). Payment-processor disputes are a substantial part of my practice. Stripe holds the funds, PayPal places the account on limitation, Square imposes a rolling reserve, and the merchant suddenly has six figures sitting in a balance they cannot reach. This page is for the founder, e-commerce operator, creator, or services merchant who has a frozen balance, a sudden termination notice, or a chargeback wave they need to push back on. I do not promise a refund. I tell you what the contract requires, where the leverage actually is, and what an attorney-signed demand letter changes about the conversation.

Matters I handle in this area

• Stripe account holds and 90-day reserves. Frozen balance, reserve release timelines, and the gap between Stripe's stated policy and what its terms actually authorize.
• PayPal limitations and 180-day holds. Permanent limitation notices, eBay-related disputes, Seller Protection denials, and the recovery path when an account is closed with funds inside.
• Square account termination and rolling reserves. Reserves applied without notice, chargeback exposure routing, and termination tied to alleged TOS violations.
• Adyen, Authorize.net, and Braintree disputes. Same playbook, different paper. Each contract has its own dispute clause and its own arbitration forum.
• Chargeback wave defense. Disputing a pattern of chargebacks where the merchant believes the underlying transactions were authorized, and pushing back on processor decisions to absorb the loss to the merchant rather than the customer.
• High-risk MCC reclassification. Sudden categorization as high-risk and the resulting reserve increase or termination, particularly for nutraceuticals, CBD, adult content, online education, and crypto-adjacent merchants.
• Pre-arbitration demand letters. Most processor terms route disputes to AAA Consumer or AAA Commercial arbitration, sometimes with a JAMS option. A well-drafted demand often resolves before the filing fee is paid.

What an attorney letter actually changes

Stripe's, PayPal's, and Square's customer service is template-driven. The first three replies are bots and frontline agents reading from a flowchart. An attorney letter, on attorney letterhead, citing the specific contract section the processor has not followed and the arbitration forum the contract requires, is routed differently inside these companies. It lands in legal or in a dedicated escalations queue. That is the change I am selling. Not a guarantee. A routing change.

Anonymized case studies

Controlling California statutes and federal authority

Below is the list of authorities I most often invoke. The contract usually controls, but California law and federal banking and consumer rules constrain how the contract can be enforced.

• Cal. Civ. Code section 1668, voiding exemptions for fraud, willful injury, or violation of law.
• Cal. Civ. Code section 1670.5, unconscionability, as a backstop where reserve or termination clauses operate one-sidedly without notice.
• Cal. Bus. and Prof. Code section 17200, Unfair Competition Law, where the processor's stated policy and actual conduct diverge.
• Cal. Comm. Code Division 4 and 4A, governing certain bank-related obligations and funds transfers; analogously applied to the merchant-acquirer relationship.
• Cal. Civ. Code section 1719, dishonored check and electronic-funds penalties in limited fact patterns.
• Federal Electronic Fund Transfer Act, 15 U.S.C. section 1693 et seq., and Regulation E, particularly for chargeback and consumer-facing dispute paths.
• Federal Reserve and CFPB guidance on payment-processor obligations, including the CFPB's interpretive guidance on payment-app holds and consumer disputes.
• AAA Consumer Arbitration Rules and Consumer Due Process Protocol, including the 2024 fee schedule where the business pays the filing fee.
• JAMS Streamlined Arbitration Rules, where the processor agreement designates JAMS instead of AAA.
• Federal Arbitration Act, 9 U.S.C. section 1 et seq., and the line of cases on delegation, severability, and unconscionability, including AT&T Mobility v. Concepcion, 563 U.S. 333 (2011), and Epic Systems v. Lewis, 138 S. Ct. 1612 (2018).
• California: Armendariz v. Foundation Health, 24 Cal.4th 83 (2000), and McGill v. Citibank, 2 Cal.5th 945 (2017), on public-injunctive relief and arbitration unconscionability; Hooters of America v. Phillips, 173 F.3d 933 (4th Cir. 1999) (illustrative of the unconscionable arbitration analysis adopted in many CA cases).

I confirm AAA and JAMS fee schedules and rule numbers against the published current rules before I cite them in a client deliverable. These fee schedules change.

Sample claims I assert in payment-processor disputes

The specific claims depend on the contract and the fact pattern, but the recurring claims are:

• Breach of contract, citing the specific reserve, termination, or notice provision the processor did not follow.
• Breach of the implied covenant of good faith and fair dealing, particularly where the processor exercised a discretionary contract right in a way that destroyed the merchant's reasonable commercial expectation.
• Conversion or money-had-and-received, particularly for funds held beyond the contractual hold window without a stated reason.
• Violation of Cal. Bus. and Prof. Code section 17200 (Unfair Competition Law), particularly where the processor's stated public policy and its actual conduct diverge.
• Declaratory relief regarding the scope of the reserve, the termination right, or the dispute-resolution provision.
• Injunctive relief in narrow contexts, including under McGill for public injunctive remedies that cannot be waived.

The processor playbook, step by step

Most processor disputes follow a predictable arc. Step one: the merchant tries the in-app or portal dispute and gets a templated reply. Step two: the merchant escalates through the same portal and gets a second templated reply, sometimes from a slightly more senior frontline agent. Step three: the merchant calls support and either gets a fourth-level escalation or is told the dispute is final. Step four (which is where I most often come in): an attorney letter goes out, citing the specific contract provision the processor's stated position does not satisfy and referencing the AAA Consumer or AAA Commercial arbitration forum the contract requires. The letter does not threaten arbitration as bluster; it explains why arbitration is the realistic next step, what filing fees the processor's contract obligates it to pay, and what relief the demand letter is preserving in writing.

The letter is not a magic wand. What it changes is routing. The letter lands at legal or at a dedicated escalations queue, where an actual human reads it and weighs the cost of a stand-against an arbitration filing against the cost of releasing the merchant's funds or modifying the reserve. In many fact patterns the math favors the merchant once the letter has been received and read by a human. In some fact patterns the math does not favor the merchant; I tell the merchant which posture they are in before the letter goes out.

Common mistakes merchants make before they call an attorney

• Repeatedly arguing with the support chat. Each new chat session resets the conversation. Save the email record and stop expanding it.
• Posting publicly on social media before the dispute is resolved. The processor's trust-and-safety team sometimes reads it. The tone of the post can change how the underlying file is reviewed.
• Trying to move funds out at the moment the hold is placed. Triggers automated risk flags that extend the hold.
• Continuing to process new charges on the held account. Adds to the held balance and makes the processor's risk math worse, not better. Stand up a backup processor before you push back.
• Asking the bank to reverse the ACH that funded the account. Sometimes this is the right move; sometimes it creates a counterclaim that is more expensive than the original hold. Confirm before pulling the trigger.
• Sending an angry, unstructured letter on their own. A letter without contract citations and without a specified next step lands in the same support queue as the original ticket. Without the routing change, the letter is just another ticket.

Typical fee ranges

I do not take payment-processor matters on contingency. The economics do not work, and a flat-fee letter or a defined-scope arbitration draft serves the client better. If the held balance is small and the contractual leverage is thin, I will say so before you pay.

How processor terms route disputes, and why that matters

Each major processor's user agreement designates a specific dispute-resolution forum. Stripe's standard Services Agreement points to AAA arbitration with a California seat for many merchant categories. PayPal's user agreement points to AAA Consumer arbitration in many fact patterns, with an exclusion for small claims. Square's terms route disputes through AAA arbitration with a California or specified-state seat. Adyen routes commercial disputes differently depending on the entity contracting. The point is not that the processors are uniform; they are not. The point is that the contract has a specific forum, and the demand letter has to be drafted against that forum. A demand letter that threatens "I will sue you in superior court" against a processor whose terms require AAA arbitration lands as either incompetent or bluffing. Either way it reduces the letter's effect.

The forum also dictates the filing-fee economics. AAA Consumer rules typically place most of the filing fee on the business in qualifying consumer matters; the merchant's marginal cost of escalating is therefore lower than it appears. Many merchants underestimate this leverage and accept settlement offers that are below the realistic arbitration-driven release range. A correctly drafted letter cites the actual forum, the actual rule, and the actual fee structure, so the processor's legal team understands the merchant is informed and serious.

Frequent questions on payment-processor disputes

Will the letter get me reinstated? Reinstatement is rare. The letter typically accelerates release of held funds, modifies the reserve, or extracts a written explanation that supports a structured wind-down. Most merchants are better served by getting their funds out and migrating to a backup processor than by fighting for reinstatement on a platform that has decided to terminate.

What is the realistic timeline? First written response from the processor's legal or escalations team typically arrives within 7 to 21 days after the letter is sent by certified mail. A negotiated release typically follows within 2 to 8 weeks of the first response. A full arbitration, if needed, runs months. Most matters resolve before the arbitration filing fee is paid.

Should I file the arbitration first to apply pressure? Usually no. The filing fee is real money and the leverage curve favors a strong demand letter first. If the letter does not produce a credible response within the stated window, the arbitration filing follows. The $1,200 tier exists precisely so the arbitration draft is ready when needed.

Does the processor care about my Better Business Bureau complaint? Less than you would think. The processor's legal team responds to contract-grounded, attorney-signed correspondence. Aggregate online complaints sometimes drive policy review at the platform level but rarely change the outcome on a single merchant's file.

Do you take payment-processor cases on contingency? No. Defined-scope flat-fee work serves the client better and the economics do not support contingency on small or mid-size held balances.

When to engage me, when to handle it internally, when to go to a large firm

Engage me when the held balance is over roughly $10,000, the processor's first two replies have been template responses, and you want a written, attorney-signed escalation that the legal team will route to a human. The $575 letter is the right tool for a single processor and a defined amount. The $1,200 tier adds a court-ready arbitration draft that signals you will actually file.

Handle it internally when the held balance is under $5,000 and the contract clearly authorizes the hold for the duration. In that posture an attorney letter is rarely cost-effective. Document the chargeback ratio, send written escalation through the processor's own portal, and let the contractual release window run.

Go to a large firm when the matter has crossed into a class action, when the SEC or the CFPB has opened an inquiry, or when the underlying business is in active bankruptcy proceedings and the held balance is part of the estate. For a class action against Stripe or PayPal, hire counsel that already has a roster of plaintiffs. I am not that operator.