Pathetic service

I am extremely disappointed by the service I have received from standard bank. Have closed a personal loan account on February 17th. It has been since the 21st of feb I have been waiting for my debit order to be reversed. I have went several times to the branch, in which I'm told it has been escalated and will recieve feedback in 48 hours . I am yet to receive this feedback and I'm the one who has to go to the branch to be told it's being escalated . To make matters worse standard bank still has the audacity to further debit my account on the 21 of March. I further try to contact standard bank call centre in which a 37 minute call where I have been transferred four time for one dam query in which the final transfer puts me straight back to transactional banking. I am extremely irate and demand my money to be recieved inclusive of the interest.