I had never sold gear on POTN before, but I sold off my 17-40 using PayPal and all seemed to be fine until the buyer got the lens and then reversed the payment. PayPal said that since I wasn’t covered under buyer protection the amount was debited immediately.
I did read through the ‘Receiving Payments’ section, but didn’t see how I would have done anything different. I didn’t realize this could happen, and figured the buyer would at least have to open a dispute of some sort.
So the question is what as a seller should I do, or can I do to prevent someone just revering the payment? I have of course read about all sorts of issues with PayPal and I realize that one has to be careful buying and selling stuff on POTN, but I'm just trying to figure out if I did something stupid.
I have of course contacted the buyer in case there is some problem or it was an error, but we shall see.

