Important: convertible note maturity extension

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.

convertible note maturity extension. I've been dealing with this for about 11 weeks now and the situation isn't improving.

I have already tried to resolve this directly but did not get a clear answer.

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