I have recently switched my current account to a new bank using the automated switching service. All other Direct Debits (I have many) have transferred painlessly, but One Call did not moved to my new account and I recieved an e-mail and a paper letter telling me that my montly payment had failed and I needed to take steps to keep my car insurance in place. I made a one-off payment to make sure my insurance continued, but I could not see a way to make a permanent update. A few days later I got a call from Riley who was very helpful. He explained that making a one-off payment from a different bank would cause future monthly payments to be taken from that account. It was good to know that I did not need to do anything else, although not intuitive that a "one-off" payment would switch my regular account on a recurring basis. Anyway, all sorted out now.