Telkom appalling service

I'm really dissatisfied and shattered about the appalling service I'm getting from Telkom regarding my cellphone contract.

Two months conservatively I've been getting a very high monthly billing debited out of my bank account which is double of what my contract agreement is. I took out a contract for R819 from the 1st of Nov 2020.

Last month (end of January 2021) I went to a Telkom store at Northgate to quiry about my contract billing and the lady that helped me said that my spending limit wasn't capped and it was left at R1500. I told her that I requested my spending limit to be on zero when I took out this contract.

Then she went into my account to rectify it but still I wasn't getting the answers from her.. So know I'm seating again with a high bill that is not even explainable...

On the 17th Feb 2021 I received an sms notification saying I've reached my spending limit for the month and I was happy with that under the impression that my usage has ended and I cannot proceed to make calls and my bill will be what I signed up for Feb 2021 debit only to get an sms with a higher amount than January's!

The very same lady at that Telkom store said its sorted now, I will pay my normal monthly but subscription but clearly not..

Can something be done about Telkom because they're service is absolutely appalling