MTN negligent to confirm

I recently had an ordeal with MTN which is leaving end of April sitting on an MTN bill worth R4000 . I blame MTN'S systems for not going with the current times, I think it does not matter to them how your account is transacting as long as you are a loyal payer . I have been with MTN Contract since 2010, if someone cared to do a proper analysis they would have noticed.<br> <br> My cell phone was ****** and before it was blocked the ******s had time to transfer airtime to other cell numbers worth R2200 excl VAT. They were doing up to 17 transfers in a day for 5 days and MTN did not even check to see an unusual behaviour on my account until I noticed that my phone had been ******. On the day I blocked the sim card I called their call centre to enquire my balance, also to check if anything ********** had happened on my account, the lady in the call centre confirmed my remaining minutes and mentioned nothing that I had and additional bill because someone was transferring airtime<br> <br> MTN needs to put systems that have validations. Its poor service to the people to not have controls in place that can detect unusual behaviour, even banks call you when they see unusual transactions in your account