Got Copyright Infringement Notice – No Details Provided?

I recently got hit with a copyright infringement notice from Amazon, but they didn’t mention what exactly I’m infringing on. The product is in a crowded category where many designs tend to look somewhat similar across sellers. I’ve checked my listing and can’t find anything that clearly violates any rights, no logos, no brand names, and everything is either original or pretty generic.

The complainant seems to be a competitor, and I suspect this might be a tactic to knock listings off. Amazon hasn’t provided any details beyond a generic notification.

Has anyone dealt with something like this before? Is there a way to get more info from Amazon or challenge it if no specific copyright is being referenced?

Appreciate any insights or advice.