I'm Sergei Tokmakov, California attorney (Bar #279869). I see a lot of these — here's the framework I'd apply.
Stripe's Services Agreement gives them broad discretion to pause payouts and impose reserves, but it also imposes a duty to act in good faith and to release funds within a reasonable timeframe absent specific risk findings. The fastest path is usually a written response that (a) addresses the specific risk concerns they raised, (b) attaches documentation showing your customer base, AOV stability, and refund patterns, and (c) proposes a graduated release with a partial reserve if they want one.
If you're approaching 90 days held with no resolution and they refuse to release, you have leverage: California UCL claims, breach of contract, and conversion are all on the table. The CFPB also accepts complaints against payment processors and Stripe responds to those quickly because they aggregate publicly.
For payroll Friday — switch incoming new charges to a backup processor today, and keep your existing customers' subscriptions on Stripe. New revenue won't be caught in the freeze.
If this stretches past 30 days I draft a formal demand letter referencing the contract terms and applicable consumer protection statutes — flat fee $575. Happy to help if it goes that direction.