3GB Capped DATA Contract R9000 Acc GPRS POST PAID

How can a DATA contract which runs on DATA now all of a sudden be an OPEN LINE and run on POST PAID GPRS after the 3GB limit/CAP is reached.<br> <br> I went into the Vodacom branch as well as phoned the Vodacom Call Centre to make sure all our SIMS were capped in November 2014 and was assured that they were. Now after 18+ months of never hitting our 3GB Limit on the one sim we get a invoice for R9268!!! And get told the account runs on post paid air time not data after the limit is reached?? What sense does that make on a DATA contract?? <br> <br> On raising the dispute I get told to fax the complaint to 0860 082 which I try and try with no success. I then give up and try the following day on the same number with still no joy. I phone again and after about 5 minutes of Voice Prompts I finally get through to someone who assures me that number is correct even though I tell them its to few digits... I try again and again... still not going through I then phone AGAIN and this consultant says no the fax number is ***!!! Works first time!!! ***!! What screen were the first 2 idiots reading from?? <br> <br> HMMMMM Vodacom... I am waiting for a response. <br>