Account been suspended and pay them every month

I have a contract with telkom mobile for almost 3 years now and had no problems till now. I received a sms saying my service has been interrupted. I called the customer care to find out what was going on which 2 call centre agents told me my account was in arrears. I then told them that it can't be as I pay my account every month. After the second call agent put me on hold to speak to her manager as it was a fault on their side she said my line would be reconnected in 3 hours. My line is still suspended and on calling them again this morning they responded to say my line will only be reconnected by the automated system in 72 working hours! ridiculous how telkom can tell their customers one thing and then say another thing. I am disappointed with the service as I pay my account every month and they just decide to suspend it. And all they can say is sorry for the inconvenience caused. The automated system is not working for you telkom!