Two accounts suspended, immediately after upgrade

Good Day<br> <br> I am the user of two MTN numbers, one of which is for an iPad and the other for a cellphone. I have been gifted these by my parents (as many students tend to be). Yesterday, my iPad contract was upgraded. MTN was happy to accept the new 24 month contract and do an immediate billing, but subsequently suspend both accounts, such that the services that are being paid for by my parents - are not accesible to me. I will be out of communication for the next ten days. Furthermore, depsite SEVERAL attempts to have me as an approved delegate to make changes in the account, as I study in a different province from my home town, MTN still has failed to do this. I have dealt with Head Office previously and was assured that the changes were made - but this is not received on the call centre side. So now I am paying for two devices and neither of them work despite my having residual airtime and data prior to the upgrade being done. Is this common practice - take someones business hastily and fail to remove billing restrictions which would render the accounts inactive?