Bad customer service

Bad Customer service so on the 25-09-2018 I request to change the debt order to new banking details at the Eastgate Cell C store, everything was fine nobody told me any problems like it will only go off at the end of October. Call the call center to make sure on the 28-10-2018 again no problems. Comes the debt order date and lo and behold it is going off the wrong bank account so I call the call center on the 03-10-2018 the say sorry they will and have sorted out by the 09-10-2018 long story short this happens for the whole entire month more than 30 calls and rude agents and keeping you on line for 30 mins with no answer and I am sure it is still not sorted out yet So I have to EFT them and then they eventually get it right and now they have charged me and now they have double my money no sorry actually they still to blame me. Cell C I will not be a return customer.