Dissatisfied Customer

I took out a fiber package with cell c for my home. The amount that was supposed to be debited from my account, was not the correct amount, it was much more than the package I actually took out. Before I took out the package I confirmed on the recorded line that the said amount would be debited from my account, to which the consultant agreed with me. I called in yesterday to try and get this sorted and was unsuccessful, I was told that they could not find my profile and nothing is showing, yet they could deduct the money from my account? I then messaged them on FB messenger and was told that the turn around time is 24hr working hours. As a new customer this leaves a super bitter taste in my mouth and I should never have left my previous provider to go with cell c. To date I have had not one person from cell c contact me.