Bad service

Your la lucia branch captured my banking details incorrectly on a new contract that I took 6 months ago, I contacted your call centre and the store in January to advise them that my debit did not come off, and this is when Azaria at the store picked up that 2 digits were wrong. I have 3 other contacts where the same bank account is used, and those debits are going off monthly. The store keeps telling me they are working on the query but I get no feedback. This is very poor customer service and a result of carelessness, in the meantime, it's my name that is being brought down. I cannot get thru to the call center all day, you just hold and hold and nothing happens. A very disgusted and appolled customer.