MTN NEED TO UPDATE THEIR SYSTEMS

MTN has a major problem with their lines, as a client goes to the store they take out a contract, contract starts from the 15th up to the 15th which means my salary date would be the 15th of every month, as I pay MTN every month on the 15th as stated on contract for payment date, my phone gets suspended every dawn month on the 9th, 6 days before my payment is due, as a client I constantly need to call MTN for assistance to reconnect my phone, your systems is f.... as noted I am not the only client that has this problem. One of the main reasons I choose not to upgrade my phone. MTN your service sucks!!!