Dear Adobe community,
please suggest me what should I do?
If you have sent an email to the address included in the notice, you'll have to wait for Adobe's response. Sending repeated emails on the same subject will not help, and actually exacerbates the problem because it clogs up their Support system which apparently is overwhelmed right now due to the huge influx of Generative AI assets, many of which are non-compliant.
I have not engaged in any illegal activity on my account
Non-compliant is different from illegal activity, even that illegal activity is for sure non-compliant. You need to wait. Adobe will answer your request, they even may have done so. Check your spam folder. I understand that you are getting nervous, but sending out multiple requests, without them having a chance to investigate, is not purposeful.
Sorry, but the community here is of not much help.