Trademark Dispute — company using my music without sync license

Quick background on my situation — any input appreciated.

company using my music without sync license. I've been dealing with this for about 11 months now and the situation isn't improving.

This involves content I created over the past 14 months. I do not have documentation proving my ownership and timeline.

Has anyone been through something similar? What worked for you?

This happened to me too. Have you tried filing a complaint with the relevant agency? In my case they investigated and it got resolved without needing a lawyer.

Following this thread — I could have written this post myself. Same exact problem.