high bills then poor communication

I have had a contract with autopage for two years for a laptop with 2gigs of data per month for the 22 months of the contract there were no problems suddenly in the 23rd month I get a bill of over R2000 rand and the reasoning is I used over the two gigs which was very strange and the month after another high bill. I did as I was advised by the customer services dept which was to ask for a url report was given numerous reference numbers for each time I called through and after almost 3 months was told the service provider says the itemised billing with just times and amount of data is sufficient to bill me. I am so frustrated being expected to pay for something when there's no proof.<br> I will never deal with autopage again and I've met several other people who have had the same problem.really so disappointed as ive dealt with autopage years back and didn't experience this.