Don't even bother with the bank. I was in a similiar situation and they can't do jack...

Look up ebay for a customer protect claim form and fill that it, along with the proof of payment, Item details, send the forms in and let them do their work. You will probably get back 80% of what you paid for provided the claim is legidimate. They will credit into your paypal account...

This is if they haven't change the process from last year.. also, they are some terms and condition, e.g. Seller with positive rating etc.

Hope this help.