Horrible Data Billing from Vodacom Contracts

I been having an account with Vodacom for past 4 years. I am a brilliant payer, my account is always on time. From August they billed me R3000 for Data. I am currently on the 2G contract paying R450.00. I didn't not even finish my 2G but I was billed extra. Unbelievable, they investigated the case and the investigation was closed without a report. They blocked all my lines, send my account to legal, I took that contract for business purposes then I could not operate. I complained again then they're open the investigation now they telling me the second investigation is closed and there is no report. I have to R12000.They are closing my accounts. No consultation whatsoever, <br> Horrifying services I am willing to take this further is not sorted out and its putting a bad recording on my credit status because of Vodacom poor customer care services and don't care attitude. Kulsoem Hajwanie was the person conducting an empty investigation without a report. He needs to be send home with immediate effect and never work for any telecommunication industry. Vodacom you made my life a living hell, cannot even function normally because of the stress you causing me.