Advice needed on merchant account terminated without explanation

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

I'm in a difficult situation and trying to figure out my next steps.

merchant account terminated without explanation. I've been dealing with this for about 15 weeks now and the situation isn't improving haha.

The amount being held/disputed is approximately $10,516. I have tried contacting customer support 5 times with no resolution.

Has anyone been through something similar? What worked for you?

Illustrative response

Dealt with this exact thing last year.

The #1 mistake I see here is filing with the appropriate government agency. I'd recommend gathering evidence first instead.

Illustrative response

The key with frozen funds is to provide exactly what they ask for and nothing more. Over-explaining or providing unsolicited documents can actually delay the review process.