Poor Management / problem solving

I find myself in a very frustrating position with VODACOM and hope someone can suggest to me how i can get this matter resolved with some actual urgency! Thursday last week i get a message telling me im about to go over my data bundle of 4gb, which i found strange but ok maybe. By tuesday i get a message saying my cellphone account is on 14k. Yes R 14 000. By the time i get to VODACOM galleria in the afternoon, my account is hard blocked and is sitting at R 25 000. My data usage on my phone shows 7gb which seems excessive because i never go over my 4gb as i have wifi at home and at work. LOGICALLY in which world and at what rate does 3gb cost 25k !!?? Mistakes happen and sometimes systems get hacked, this i understand. BUT this is no fault of mine and yet i am getting treated as the ******** ! My problem is how poorly VODACOM has handled this situation. Since tuesday this matter has still not been resolved. I have been very patient and have been back to the vodacom shop 3times to follow up on my complaint only to be handed the phone to a consultant asking me to verify myself and then tell me the situation has been escalated and THE SYSTEM wont allow them to do anything. The best yet is when yesterday they tell me that they have been trying to contact me but i havent been answering my phone..... the very number they have on there system as blocked!!!???(I gave them my alternative number) Where are the people who can make rational dicisions and offer true customer satisfaction. I have supported vodacom for 15 years. I depend on my phone to run a business. I cant even do internet banking. So i spend my weekend at VODACOM and the bank so i can pay wages to my employees. I have learned that i have lost customers because they could not get hold of me and know that i have frustrated others. Why is my phone completely blocked and cant even receive calls? How does a cellphone account get to R 14 000 before you get notified? Why is there no urgency in the department? Why is there so many similar reports? Why is nothing getting done to avoid such situations? Why can nobody on the VODACOM line or in the stores answer any of these questions? How can this service be thought to be acceptable? All i got from VODACOM stores was shrugs and sorry. Its as if even they know there system has major flaws yet nobody can do anything about it. Or can we??