I cancelled the pickup because the merchant didn’t say they wanted me to return anything yet. They emailed me this morning, and it only mentioned that they filed another claim. It didn’t say anything about authorizing a return, only that I needed to take the package to get inspected. They wanted me to get the package inspected, and then they could discuss return/refund.
I was working with the merchant to solve the issue for a week. They were shifting blame and responsibility onto a number of different entities. I followed their instructions exactly as they described, but ultimately the claim number they provided to me was not valid. I assumed they were being deceitful as they confirmed multiple times the claim number they offered me was valid, and that UPS were the ones that were making the mistakes.