Incorrect airtime billing

My Flexi 200 (previously Talk 240) contract of many years has been cut off for being out of airtime. I request itemised billing and can clearly see that my airtime usage isn't more than 90 odd minutes. But the itemised billing shows 70 HOURS.<br> <br> For some reason my data charges have been recorded as being connected as airtime. WTH?<br> <br> Now I'm sitting here trying to run a business whilst Vodacom are doing an investigation and I can't make calls.