Capped Account

Every month from February I have to email or call MTN as one of my numbers on my account is being charged for calls after the airtime/minutes are finished and charged for data after the bundle is finished even though the number is capped.<br> The first month I was credited to my account but now I have to send the an email every month regarding the same thing. The response I received is that the account is capped but the system mistakenly allowed calls to be charged. I have still not be credited for 3 invoices now and have not had any feedback from MTN in last month even after me emailing them. I am really disappointed with the service I received as I have been with mtn for 14 years now and never had such bad service.<br> <br> Please be advised the number I supp**** under Mobile Number is the number that has the query and not the number I can be contacted on.<br> <br>