Hi. I bought a watch strap from a foreign seller that failed after a few weeks (I'm in the UK). They are offering a replacement, but want me to pay postage ($27) for an item I think is inadequate quality. They will not offer a refund. I can't find my way through the Ebay system to start a complaint, and I can't see how to rate/review the seller (option has been disabled?). Can anyone offer advice?