Telkom customer not happy

Dear All

I have a problem with Telkom first when I was changing my bank details from Capitec bank to Nedbank I called them and I updated them that am changing my bank account on the first month they said they have updated my details on their system the debt order will start deducting on my nedbank account, then the first month passed they didn’t deduct, I followed up with their agent they did update my details but on the middle of the second month they cutted data off on my router, then I called them again but end of the third month same things happened again then they told me nothing is updated. but I received a letter saying I have an outstanding amount of R600. Am not happy with this Telkom.