How did you win these? I'd like to know how to minimise the chances of being scammed, especially for paperwallets, if you have any info.
First, you have to comply with all of Ebay's seller protection policies. If you send the currency digitally, that does not comply.
If you send it via traceable postal mail, that DOES comply.
Read the fine details of the seller protection policies.
Then when the buy files a dispute saying "unauthorized transaction", call up paypal, provide the tracking number, and insist on resolving the case ASAP.
I have only lost one case, and it was because I shipped internationally, and I didn't ship via FedEx or DHL, I shipped USPS. Shipping internationally via USPS will yield NO seller protection.
Also, when you sell mining hardware on Ebay, a buyer can say "Item is not as described", and they can pretty much manipulate the system and get free mining from your hardware, and then send it back to you. It is NOT advisable to sell mining hardware on Ebay.