Disappointed paying customer

I received my contract from Cell C, 3 months ago. Recently found out my line is an open line meaning it has not limit. I queried this with cell c , advised them that i was never informed of this. Customer care lodged a query and advised someone will call me back, to this day NOTHING. My phone has now just literally shut down. Called customer care AGAIN, and they said they would put me through to the repairs but the line keeps getting cut off. Called customer care for the umpteenth time, i was told they do not have a direct number for me. So now what do i do? I have a bill that i cannot afford to pay, and the phone itself is not working. What a waste of my time and money. I should have just stayed with Vodacom.<br> <br> Cell C doesnt seem to care about its customers. Useless network.