Who Owns Udio AI Output? Commercial Use Rights

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

using AI to generate marketing copy. I've been dealing with this for about 3 months now and the situation isn't improving.

This involves original creative work over the past 16 months. I do not have documentation proving my ownership and timeline.

What are my legal options here? Is it worth pursuing?

I had a similar issue and ended up consulting with an attorney. It was worth the $200-300 for the initial consultation just to understand my rights.