Need advice about a faulty product
So I bought a Nike backpack at the beginning of August. It was supposed to be here by the 11th. No communication from seller why it was late. I opened a case and all of the sudden received a message with tracking number. Backpack finally arrived on 08/21 but a blind person can see it’s not authentic (string hanging off, zippers were broken which I was able to fix, uneven stitching, backpack feels cheap). So I put that as a comment in the already opened case.
Well yesterday I received a refund and now this seller is messaging me, threatening me he will seek legal actions, if I don’t return his product, because I received it but still open claims. The claim is from before I received it (when there was no communication about shipping), but the product is not real. I read a bit on eBay money back guarantee and it says if item isn’t as described, it’s on seller to send me a return label.
Was there anything else I was supposed to do?