Has anyone dealt with using AI to generate marketing copy?

I'm dealing with a situation and need some guidance.

using AI to generate marketing copy. I've been dealing with this for about 7 months now and the situation isn't improving.

This involves content I created over the past 6 months. I do not have documentation proving my ownership and timeline.

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

Following this thread — Are you me? Literally going through this rn.

Went through something like this -- ended up getting a lawyer involved which made all the difference.

I work in this industry and unfortunately this is very common. The good news is that when people actually push back with legal representation, companies usually settle.