Bad, worst

Good day I would like to write a complain about my experience I had with Mtn I had a home route with them my contract ended in December 2024 i received a call in October on the 14& 17 October I told the lady that I'm not going to renew the contract because we putting now Fibre so I will no longer need the data they giving me the lady told me that she will make a note I also sented an email in November stating again that I'm not ungrading the home route route on the 31 December they debited R650 more than what they should have debited I called numerous times no one could assist me, I'm very frustrated now because I specifically told the lady in October I'm not going to upgrade the contract so clearly she didn't do her job now I can't be assist