contract breach

i asked to reverse one of my loan repayments and said it will be payd by the 5th when i received my sallery they took the debit order prior to the sighend contract agreement that we have then they just say its salary is paid in, 2 of there call agents hung up on me and 1 told me i must just leave a complaint because she is not going to transfer me to her manager when i asked more then 6 times maybe so would advice every one to check all there debit orders with capitec because they do not know what a contract is, and also check your loan contracts as well because when you make a loan and take it and you have another loan they make you pay up the previous loan but then they give you less money cause they paid up your previous loan then you still have to pay the previous loan the just lessen the deduction so that you will not resive an sms telling you about the debit order went off