Telkom is horrible

I am really unhappy with Telkom

I have been overcharged twice and today when i called through to Telkom the agent hung up on me after telling me that the only time i would be charged extra is if i increase my spend limit, which i have never done

Now I’ve been debited twice and im told they will only review after 72 hours, then i am told that she doesnt log complaints? As a financial service provider i have the right to complain directly to you and if im not satisfied with the outcome i have the right to go to the ombudsman