I bought an electrical item for xmas which has a fault. Bought from a company via Amazon. Emailed using their "contact seller" option and received a quick reply. They are happy to replace it if I send the whole thing back via Royal Mail or registered post. It's pretty heavy and going to cost me a fortune to do that, as well as being a complete pain to package up and get to the PO. I'm really annoyed about it. Does anyone know if I have any right to insist they either pick it up or pay for the postage? Or is what they're asking fair since I bought online?