Excessive charges but no one can help me

I had 2 contracts with Nashau Mobile, which started in 2012. In the months that I was with nashau, my average cell bill was R1700 for both phones, which was for a two year period. On the demise of Nashua, Altech Autopage took over.<br> There starts the problems.<br> In December my cell phone bill was in excess of R6000 for ONE PHONE ALONE.. Trying to get answers to understand this excessive amount has been a nightmare. We have phoned the Call Centre on numerous occasions and nobody could help us resolve our query.<br> On speaking to the Call Centre today, I am told that that I will get a response in TWO to THREE MONTHS FROM TODAY.<br> I am told it could be automatic updates, but my question is what if its not. Furthermore on the 12 December 2014, the charge for that day alone was R1834.<br> Please Altech get your service right. These are business phones, which are now disconnected because YOU CANT HELP ME.<br> This is a message received from Altech, \ Your monthly Usage Limit of R0.00 has been exceeded. The Line will be barred for outgoing calls until 2015-03-01."<br> And yet I have a bill in excess of R6000.<br> Please Help"""