Data Limit lifted without noticing me!!

I had a Data Contract with MTN with a Usage Limit of not more than 2Gig per month which I had for more than 3 years. Now for the first time my account of R105 per month went up to R321. My CONTRACT was signed for a LIMIT Cap on my DATA usage. They have taken it off without honouring my contract!!<br> The personnel at the MTN shop in Mossel Bay is useless. Unfriendly. I have logged 2 complains with them last week. In 7 days they have heard NOTHING from their customer care requests. <br> I myself have also logged 4 complains with the 'customer care line' (HAHA) with reference numbers and still NO RESPONSE. The one girl on the other side could see that I HAD a USAGE LIMIT on my account but don't know why it hasn't been honoured. No one is coming back. No one is responding on any request I have logged... HELP!!! These people are a frustration and therefore we have already moved our one phone account to VODACOM where we get quicker response and service!!!<br> This data line will soon follow the same path it we don't get help quickly!!<br> But before then I need to sort out the ACCOUNT..<br> And one more thing - People at MTN's customer care line are not allowed to speak AFRIKAANS!!! Shame on you