Vodacom bad service

I've been a client of vodacom for years. I've been upgrading my contracts and to date I'm paying a large some of money to them every mth. To my surprise in Sept an additional r1000 was deducted, when I called the call Centre I was informed that auto Dat was placed on my acc and that I will need to pay the amount as I used the data even though I didn't request it. How would a sms be sent if the Sim card is in a router? So how can I be held responsible at this time I have btw 6/7contracts with vodacom. I have made 4 calls since the 30/09/2024 and everyone has a different story. The call was escalated so that it should be fixed. To my frustration I received my latest statement now stating I owe r5700!!! Whenever I call I get a different story, I've spoken to Hloni, Daniel who it seems gave me an incorrect name, Ashrone and today to Jamie Lee. How is this treating the client fairly, I have sent an email to vodacom complaints and to date no response. Beyond pathetic, how is this treating the customer fairly. I can't afford to have this amount go off my account!!