Vodacom charged for error of 180GB recurruing data charges in one month

I have had the worse experience with Vodacom trying to resolve and reverse 180GB of recurring data that was charged to my account in error. I have not requested it or approved it. It was apparently done online by someone ordering and cancelling recurring bundles. My normal account for years has been at approx. R700 and I never use my app to buy data or airtime if I run out. I received an account of R4100+ in Feb and been calling since the 8th of Feb trying to resolve it and prevent it from happing again, I received gradual credits after each logged complaint but it was not completely resolved and was still charged for 1684.01 via debit to an account that should have been debited R+/-700. I am devastated as it cant be stopped or fixed and I have other debit orders that must come off. I am told I must just log it every 3rd day until its resolved, but I do not have the money to just pay for this unresolved complaints and feel I am kept hostage to just pay whatever is charged to my account even if it is in error. I have called the call centre 6 times and reported it to a store and they say they can see its an error and something went terribly wrong with my account but it just does not seem to get resolved. I just need one person to call me and resolve all these issues of which I have to keep on calling in for and it does not get resolved.