Important: etsy holding funds for 45 days

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've been trying to resolve this on my own but I'm stuck.

Etsy holding funds for 45 days. I've been dealing with this for about 12 weeks now and the situation isn't improving.

The amount being held/disputed is approximately $10,074. I have tried contacting customer support 7 times with no resolution.

Do I have a strong case? What should my next steps be?

Illustrative response

NAL, but from what I've read, you should send a written demand. That said every case is different so take this with a grain of salt.