High usage alert

Good day <br> I would like to please bring this matter to your attention. An incident occurred where one of our 3G SIM card that was ****** with a laptop was used and they have rung up a bill of R 57 748.88 in 2 days.<br> The normal procedure is that MTN usually send high usage alerts for extensive usage. To our surprise it did not happen this time...I contacted the MTN credit controller Cathy Botha to have clarity as to the reason we were not notified of the High usage. She advised that she will escalate the matter to the ***** department and we have not heard from her since. I've since escalated to [Email Removed] She has not acknowledged my email. Two Directors of the Firm requested a cession to the CDH MTN account and they we told that CDH is not allowed to add any more lines in to the MTN account until the outstanding amount of R 57 748.88 is paid in full. We feel that is absolutely unacceptable that one line can affect the entire account .This matter should be dealt with separately. I'm afraid CDH is not entirely at fault, the ***** department failed to notify us of the High usage and they must take responsibility for this error. MTN should meet us halfway.