你就引用亞馬遜的商品退換貨政策，然后建議他跟廠商聯系，看下能不能退換。
如果是通過UPS、Fed Ex寄件的，跟他說超過90天，就不能要求損壞賠償了
他可能會申請az，但你肯定贏

購買的30天內買家可以要求退貨退款，90天內可以留評或提交claim。如果產品有保修，可以教他怎么跟廠商聯系，讓廠商幫忙修理或直接退換
他提交的claim會被否決，不會對你的ODR有影響（顯示的是訂單時間，而不是提交claim的時間）。就算他贏了，亞馬遜會出錢賠償他的。

好的，真的非常感謝你們的建議~

"Dear Buyer,
Thank you for purchasing from us on Amazon, Your (item) (serial number) was delivered (Date) with signature and was as described.
I hear you are having some problems with it, I am sorry for the trouble.
Amazon policy provides for return for refund within the first 30 days, and Amazon refers support and warranty service after 30 days to the manufacturer under the terms of the factory warranty. Defective or damaged electronics can be reported up to 14 days from delivery.?
Since it has been (XX) days, Amazon does not provide any mechanism for return at this point.
I have checked, and your unit (serial) is covered by factory warranty until (date). The manufacturer's contact information is (web and mailing) and their support phone line is (phone).?
I have also looked up some suggestions for your unit here?
(FAQ, operation manual, trouble shooting links)
Hopefully (your unit can be replaced under warranty / you can have the parts ordered), and you can get back to enjoying it again quickly.
Please let me know if there in anything else we can do to help.?
Cheers?
Seller"
這是郵件模板，再說明一下亞馬遜的相關政策。你不需要接受退貨，如果接受了，就收取restocking fee。