FNB is a ****

Hello Peter FNB again. I would like to complain about thier useless service. I had a contract with Gym company and it was 2 years contract. It ended March 2021. Now gym company is claiming that my contract was 3 years. I am saying to them give me my contract where I signed up for 3 years, they not providing. I asked FNB to stop the debit order last month and they said it will not happen again. They charged me for that. This month the debit order went off my account again. I am asking them to reverse, they saying they can't without charges. Is this a ****. Every month I will be paying dispute charges because gym company wont stop debiting my account. How is this fair. I am changing this useless bank. If I cant trust them to look after my few rands, how will they look after my millions Useless FNB. I want my money back and I am paying no charges because I was promised that this debit order will not happen again