Benny niccolo, If you go into you paypal account and open the transaction summary for the disputed payment you will see at the top the buyers name and the paypal seller protection address that you should send the item to.

see the other information as you scroll down the page.

Half way down the buyers name will be given again..... this name MAY be different than the buyers name at the top of the page.

If it is then your payment came from a credit or debit card owned by that person but it is linked to the buyers credit card account......

See my post above re my wife using my credit card on her paypal account (DG seemed to think I was talking about info I can see as a buyer however I was talking about what info a seller can see if they read all the paypal transaction summary)

If the buyers name at the top and the one listed in the centre varies then it is invariably harder to prove that the use was indeeed an authorized use as the card owners name is not on any documentation conversely if they are the same then it is a little easier.

If you request the ebay user contact details of your buyer an

d those ID details concur with the paypal account and the  chargeback ID details then you are a little better off. I would supply those as well to paypal mimpressing the correlation while also impressing that the ebay account had not been flagged by the user as being hijacked

Make sure you keep copies of everything you send to paypal.

If a lot of sellers  experience a chargeback at the same time from a single buyer and + feedback has been left then it is more likely that the numpty buyer maxxed their card but just kept on buying... if that is the case then you will be hard pressed recovering given that the buyer is from overseas and any civil action would be  extremely costly......

good luck