Recently I have had an issue with a hijacker on one of my listings, and recently got registered with brand registry.

I managed to get the brand on the listing synced with my registered brand after hours with seller support, and this opened the door for me to send a trademark infringement complaint for a counterfeit product.

However the hijacker has now complained to Amazon about the brand name change and Amazon have changed it back.

Any advice on the best course of action to take is much appreciated, I've opened a case on seller support and brand registry but not really getting anywhere.

My fear is that as the brand has been changed back, this kind of invalidates the trademark infringement claim I made on brand registry, as the brand is no longer my registered one,

Thanks

p.s I am the brand owner, product owner, hijackers product looks nothing like listings (have tried test buy and report etc but no luck)