R6767.63 Bill

Hi there - using Hello Peter in the hope that you'll response to my urgent query.<br> <br> I received an sms from MTN stating that I have a bill of R6767.63 on Friday 15 May 2015. The sim that I am referring to is a contract sim, and is loaded on a monthly basis w/10GB, with an additional 10GB loaded at night. The bulk of the bill is data charges (about R6k)<br> <br> The sim is contracted under my manager's name, and the payment is going to go off his account on the 1st of June, as per sms. We would therefore like to know why there was no form of notification via sms or mail that the data amount was exceeded, given the fact that I was tracking my data usage by dialling *141# whenever the sim was in usage? Is it legal? How does MTN charge me outside of the 10GB that I have been allocated? <br> <br> My manager and I visited the Benmore Gardens MTN store to verify the bill, and their system showed me to ve owing less than R1000.00 (cannot remember an exact amount), and then called the mtn contract line, which confirmed the R7k bill. We asked for a statement, and we still do not have it at hand. The reference number for the call is *** 93.<br> <br> Please could you urgently look into this.<br> <br> KR<br> Masentle