A customer ordered 8 sets of socks in two different sizes on May 5. On May 26, I was notified that a return was cancelled by the buyer. Then, on June 4 at 9:20 AM, I received a new return request. Just three minutes later, at 9:23 AM, the buyer filed an A-to-Z Guarantee claim.I believe three minutes is not enough time to respond to a return request—though I suspect the buyer had already intended to file the claim regardless. In her claim, she stated that only half the items were “materially different” from the description, and she wanted to return just those.I had shipped the order quickly (delivery within 2 days from the U.S.), and I responded to the claim with a detailed explanation. However, almost immediately after my response, Amazon granted the claim in the buyer’s favor and marked it against my account.No images or evidence were provided by the buyer to support her claim. Moreover, she is keeping half the socks—identical to the ones she claims were materially different.It’s incredibly frustrating that Amazon approved this claim before I could even respond to the original return request, especially without any supporting evidence from the buyer. This feels like a clear case of system abuse, where sellers are left to bear the cost.