YouTube Content ID false claim — need guidance ASAP

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

Looking for advice on a legal issue. Here's what happened.

YouTube Content ID false claim. I've been dealing with this for about 11 weeks now and the situation isn't improving.

This involves software/code I developed over the past 30 months. I do have documentation proving my ownership and timeline.

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

Illustrative response

Important to note: statutes of limitations vary by state. In California it's generally 4 years for written contracts and 2 years for oral contracts. Don't wait too long to take action or you might be time-barred.