Cell C is pretty useless at debit orders

I'm a Cell C customer for close to 10 years now, but the last 2 years their billing and must say overall customer support has gone up in flames.

My contract with them states that they will deduct the money for the contract on the first of every month, but that doesn't stop them from deducting the money on the 23,27,29th. They seem deduct when it seems fit to them

I have contacted them to move me to pay as you go (as my contract has reached end of term) and they said fine they will. They then still deducted money. I then whent to my bank to get a stop order against their debit order.

As of the 4th of Jan 2022 my account have been suspended, with me R500+ in debt to them. I payed the money (double, as my father also payed without my knowledge)

I can't contact them to complain or activate my account again as it keeps going to a recorded message.

I'm leaving them as soon as I can get to a branch.