Contract Upgrade

I have a contract with Telkom which started two years ago and was ending this year in February, the subscription was R250 per month for 20GB day, 20GB Night surfer (00h00 - 06h00), towards the ending of the contract, the monthly subscription went up from R250 to three hundred and something :(

Early March 2021 I saw a special / promotion on the internet of 80GB p/m for R199, I then requested a call back for more information and I was called back by a lady called Tracy Siwela, who assisted me with the upgrade and assured me that the upgrade was successfully done and that the change will show on the very same month, come month end, my bill is still three hundred and something, whaaat? Fine, I left it and waited to see for April, same thing, even more, I then checked the app which showed me that I pay as I use the data, which is more expensive. I then send her the screenshots of the app asking for an explanation, guess what she said: "I am unable to assist you from my side as I am only working with sales, you will have to visit the Telkom store" I mean the audacity, the very same person who assured me that she did the correct things, she gives me this ****.

I went to Telkom to ascertain the problem, I was told that the lady ( Tracy Siwela) did not do the R199 upgrade as she assured me but pay as you use. Heee banna, so what now, No, they wont be able to fix it, I will have to wait at least three month before the change can be done. Another two months of being debited money that I did not sign for. What is that?

I am very disappointed by the service I have received.