BeeJayBee
Queen Bee
Sorry thats not necessarily a scam. if the purchase was canceled there is an automatic refund of payment to the buyer if the initial payment was through a paypall account.
if you made payment through paypal as a guest then the refund could take a little longer, if it is not paid back to the card you used after 3 days you need to contact paypal not ebay, you will need the reference number of the email paypal will have sent you confirming payment.
they might have sold an item they actually do not have in stock and if they have the item on an automatic re list it will have put it back up again.
I got caught like this a few months ago. Item cancelled by the seller as soon as the payment had gone through. It took Paypal longer than 3 days to refund - said so in their email although I can't, at the moment, recall exactly how long it took.