Telkom - debit order date not changed.

I called Telkom last year around June 2024 to change the date for my debit order and was told that it was done. The following months there after they continued to debit me on the 25th and which was supposed to have changed. I then spoke to Thobelani on the 26th Jan and complained about the same issue and requested that my debit order be changed to the 5th of each month. He confirmed and said he changed it and my next debit order date would be on the 5th March. To my surprise Telkom debited me again today being the 25th. I am very upset and disappointed with the service that I am getting from Telkom after a loyal client to them for so many years.