4 Months now and still my problem is not fixed

This is now the fourth month that Chatz Cellular and Vodacom have been unable to sort out the problem with data on my wifes mobile account. Every month there are promises from all and sundry that it is sorted but every month we have the same problem. Its totally ridiculous. 4 Months! And this month the billing amount is suddenly double what it should be!<br> I give up honestly. Never experienced such bad service before and i have been a Vodacom client for 16 years!!<br> So much for loyalty.