From 15 October 2017 the old £1 pound coins will no longer be legal tender in the UK. Does this mean that your old £1 coins will be worthless? Or are there still ways to exchange them? You sent us many questions about the old £1 pound coins in your piggy banks. We sent your questions to all UK high street banks, the Post Office, the Royal Mint and the Bank of England. Here are the answers …