I sold a PC on eBay about a yr ago. Did it the right one new parts, bench tested, posted via courier packaged super food.
I get postive feedback and he is thrilled with the item. 2days later apparently it stopped working. He wanted a refund. PayPal froze my account, took back the $1500 he paid for me and basically said I have to prove I'm in the right.
So I got the PC back mind you in pieces! I took photos and tested it all. Sent them to PayPal along with a teat report. Nope I was s having to give him a refund. I took the components back to my supplier. The GPUs where fried, Mobo was dead and the PSU was not the one I sent.
In the end with all my evidence and as well as warranty and replacement documents from my supplier I still had to give the refund and pay PayPal back the $1500.. so Yeh I'm done with them Fkn useless.