"*****ing" money from people banking account

I have given Mastercare my written notice to cancel my contract on the 16 October 2017, of which I have to reverse the deduction for 3 months and paid my bank a fee for each reversal. The stop order than stop and after a couple of months Mastercare call me to ask me why I have cancel my contract, which I told them that they have the worst customer service and that they keep on lying to me about my repairs. Well 2 months ago Mastercare started to implement this stop order again and I needed the bank to reverse it again and it cost me money to reverse this every time. This is ******* of just implementing a stop order after it has already been cancel. This I call **************** out of people banking account. My bank gave me a number and name to call, but the phone never get answer on the other side. Does anyone know if there is an ombudsman for ******* stop order deduction that I can report these activities too. Thanks.