eBay siding with buyer on false claim — what are my options?

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 dealing with a situation and need some guidance.

eBay siding with buyer on false claim. I've been dealing with this for about 15 weeks now and the situation isn't improving.

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

Illustrative response

Yeah following this thread — This is eerily similar to what I'm dealing with. Keep us posted?