Telkom Mobile refuse to change banking details

I went to the Telkom Walmer Park store, gave them my banking details to change on my account over a month ago. The lady said it would be done and with my next payment the amount will go off with the new banking details given. The amount never went off, it was never done. Still going off on previous account. On 7 April I went back to the store to question why this was never done. I had to stand in 3 different queue`s untill someone helped me. In the second queue the lady saw I was waiting, but as I got to the front she took her bag and went on lunch without apologizing. I told her I`m heavily pregnant. She just ignored me and walked off. Eventually in 3rd queue Patro gave me a \****"business card with a landline nr at the back. She said I can phone her Manager if no one answers my e-mail. My e-mail still hasn`t been answered and the landline nr just rings and rings and no one ever picks up. Every single time I have a horrible experience with Telkom Mobile when something has to be done on my account. They lie to me just to get me off their backs and then I still sit with same issues. I`m disgusted one again with your horrible non existent service and no-care attitude. """