Calling this "service" is a disgrace

I have been battling for 4 months to get my details on Vodacom changed so that I am the master account holder for the 3 contracts that I have. I have been paying these accounts for approximately 10 years and the contracts are all in my name. How can I not be the master account holder? The first 2 months I phoned Vodacom to report it. Last month I posted on their FB post to fix this and a call was logged to fix this. Today, I chatted online with Unathi who logged another call (1- ********** ********** ) and told me that request normally takes from 24 hours to 72 hours. How many calls have to be logged before this is going to be resolved? Or am I just going to have to keep doing this until I move my contracts to another SP - there are more than enough alternatives. And to top all of this, my Vodacom e-mail address no longer exists, which means that I do not receive my monthly invoices any longer. I think I should just stop paying the invoices until I actually receive the invoices without having to beg for it.