terrible service

My account got suspended immediately because of non payment but immediately I made payment but my line was not re instated. I called the call centre and they received the payment and advised that my line will be opened, that was at 9 yesterday morning. But nothing happened so we called to speak to a manager bt all was in meetings. But the agent promised the line will be opened at 1pm . Nothing happened. We called again at 5 and same story. I called again at 7. Spoke to the supervisor who had me on hold for 45 minutes and was on a call with someone else. She didn't fix my query bt took another call. She couldn't get hold of the manager who promised to open our line.