Vodacom Technical error costing me thousands.

In June 2022 due to a technical error by Vodacom an old subscription was reactivated. I noticed the increase on my invoice and reported it immediately. Since June 2022 after speaking to numerous consultants explaining my predicament still the amount for 2 subscriptions are being deducted , today was the final straw. I got a call to advise me if I dnt pay R529 my service will be suspended I was shocked as I have a debit order but ok I go to canal walk century city pay this huge amount. Keeping in mind that my actual subscription is one of R286. It increased to R396 and now demanding R529. Not only did I pay the R529 but tonite my account was debited with R529 again! I was told that by August 2022, they know they had a system error, my account will be rectified. However since June till now Vodacom has overcharged me by more than R2000 and no one us sorting out the problem! I am at my wits end! Instead I am having to fork out triple the amount of my contract. I WANT A REFUND FOR ALL THE MONTHS SINCE JUNE THAT I WAS OVERCHARGED!!!