If I remember well, when I was living in the UK I could block/stop a recurring payment. I am now using Revolut, and it does give you the option to block all future payments to a specific account/charge. So, if they don't listen, you can always send them a nice FU message for their "bug" which costs you real money, and block the payment. And when they start bitching about the missed payments refer to the (ignored) message and move on with your life.