Amazon A-Z is a well know internet scam these days and royal mail tracking does not do anything for Amazon, they still refund the customer. We have a couple of regular customers that do this, we can't block them like on ebay and with many orders we sometimes miss them. Just add a page where we can add names or addresses, that then come up with an alert when they buy. Like an exclamation mark similar to international orders. This would be beneficial to both us and royal mail as it would stop many claims.