Seller should be sending you a Transaction to Cancel Purchase (or whatever it's called) and you do your part in agreeing to it and then money is refunded to wherever you sent it from. You didn't say when he agreed to cancel, but if you haven't heard anything in a little while phone ebay at 1-866-278-1053 and they should get on to him about it - hope you've kept all your messages between you and the Seller - ebay can see all of that. Remember, time difference if purchased from Europe, China, etc. Seller might be sleeping!