Do I have any rights when I've won & paid for an item but seller simply changes their mind and refunds my paypal payment?

[dave-at-dandy]

I recently won a item on ebay for the reversed amount as no-one else bid, and immediately paid for the item through paypal.  I contacted the seller, detailing my phone number requesting when I could pick item up.  Then messaged once again finally receiving a message back with her stated that she is only a selling agent and her client had change their mind about selling the particular item and she would refund me immediately.

I feel this item should rightfully be mine, the seller or the agent had the entire time it was listed to withdraw it from sale, surely it is now too late.  I tried going to the resolution board but as it hasn't been 10 days since I won the item I can't do anything through them as yet.  I'm left in limbo.

Has anyone had similar experiences and what happen?