They are losing a good customer.

I've been a cell c customer since 2009 and never had any problems with them until now. one of my contracts ended a few years ago and they never cancelled it. called them to cancel and it never happened due to *********** staff. now they want me to pay them for a number I never used. They expect me to pay them R16000 for something I never used, and I cancelled it. now I can't upgrade my line because of *********** staff.