Well your credit card protect you on purchases of over £50
I had an instance before when I bought something on eBay and PayPal refused to refund me, I bought a ornament thing for my mum and it came in pieces...
Cost £360
I went to my CC and they gave me the money back immediately and pursued the relevant parties
Worth its weight in gold!
As for your bank I'm not sure how easy that is as I've never tried