Cannot purchase data or view balances via *111#

About three months ago I moved to Vodacom and ever since then I have been unable to use *111# to check my balances (all balances appear as 0.00) or to purchase data / airtime (tells me number is not provisioned). I have phoned numerous times and have heard every excuse in the book from I need to download the Vodacom app to there is no network coverage to I have the wrong contract. My Fiance's *111# works fine and we took our contracts out on the same day, in the same store at the same time. I have tried everything that Vodacom has told me to do to get this working, including switching networks back and forth, switching the phone off and taking the battery out, taking out the sim card etc, and it is STILL not working. This is becoming very tedious and I don't have the time or the inclination to spend every month on the phone with Vodacom to purchase data/airtime and try resolve the issue with no luck yet again. I cannot believe that I am the first person to have encountered this problem, nor that Vodacom doesn't know how to fix it. Downloading an app is not the solution to the problem. I am paying for a service and yet cannot use it. VERY disappointed.