I advertised 2 nail guns on ebay -  both were tested and working before listing.  Listing was clearly " RETURNS NOT ACCEPTED"

Purchaser now states the items are not working and wants a refund of both purchase price and postage.  I must say I find it extrodinary 2 usually very reliable items that were tested and functioning well have both stopped working with the same problem 

I'd appreciate any feedback people care to provide.

Thanks

Mambo