Dis tasteful bad Customer Service

I had changed my banking details on 9 January 2024 with Telkom but today upon checking my old bank account I see that Telkom had tried debiting my old bank account of 16th & 19 January 2025. I then tried calling Telkom and spoke to an agent by the name of Mbali and asked about this and she advise the the collection agency had not updated to mt new bank details as it takes 30 days which I was never ever told about. Then i have been told by Mbali that i would have to make a manual deposit but when i asked about that fee of R210 she said I will still be charged and I asked hoe can I be charged that fee when banking details are updated and now i am forced to go make a manual payment for my account.

I cannot be told this is Telkom policy because this is a *******. I also want to know when I first took out this contract I was paying R289,00 why was it after a few months increased to R309,00