****** action from bank

Since being ill and not being able to work i contacted capitec bank and entered into a legal agreement with them to repay my loan which would be a month to month agreement. I got a refund from sars which capitec took the monies in unauthorised debits off my account. When i called clarify and advise that my rent was unpaid including my car repayment the supervisor became rude and said he can do what he wants. Is this the service that we deserve? I dont think so.