4 attempts to update banking details

Worst service ever. I have gone out of my way to update my banking details with CellC. I upgraded my contract in January and was assured by the personnel at the centurion branch that it would be updated. I Even supp**** them with a bank statement of my new bank account. At the end of February I notice that CellC attempted to take the money from the wrong bank account and logged a call online with CellC this was followed up with the call center to change my banking details. Then my cell phone data line was cut and I started receiving annoying emails from CellC every few hours to sate that I will be handed over to their legal department for collection. I then printed the email and left a message with the Centurion Branch where all this started. Was contacted by the staff and promised that it would be sorted out. But it wasn't and I contacted the call center again upset that they still haven't resolved the issue. Which brings me to Hello Peter. Maybe CellC will now respond as my data line is still cut and I am not receiving any service and their is enough money in my account to let this debt order go of 127 times. I should have never upgraded with CellC.