My product has been complained about for copyright infringement.

I checked my product myself. Both the product pictures and product descriptions are different from those of the complainant.

And my packaging has our own trademark logo. This trademark has nothing to do with the complainant. What caused my copyright infringement?

I have contacted the complainant many times, but have not received a response. I don’t know what caused my copyright infringement now? I have contacted Amazon customer service many times, but they didn’t tell me the specific reason for the copyright infringement. How should I find out the reason for the infringement now?