He can say a lot of things but that one will be ignored by eBay, by Paypal and by your credit card company *.
If an unhappy buyer files an Item Not Received Dispute, the seller must either prove Delivery (not shipping) or refund the buyer.
That being said, Surface shipping can easily take up to three months from overseas. Because of the nerve-wracking delay, but much more because the seller is making up his own rules and bullying customers, I'd pass this one by.
*It is a good idea to back your PP account with a credit card, because it gives you a second line of appeal if the transaction goes pear-shaped and because your seller gets paid instantly, no waiting for your bank account payment (e-cheque) to clear.
