one way to avoid scammers or credit card thefts, is to ask the buyers to email a print screen of their Paypal account where it shows UK Verified. As believe me Paypal or ebay doesn't really helps if you are scammed. I have had a cashback from Paypal in Dec 2007 and nothing have been done even the Police didn't help. Paypal will say it was unconfirmed address, Police will say its Paypal who need to sort it out.... its just a viscious circle where the seller loose. And on top Ebay charge you for the transaction.