Cell c once again has provided me with pathetic service

Cell c once again has provided me with pathetic service. I received my statement and my minutes are charged from the 1st October to the 31st October however they have suspended my line due to my contract coming to an end this month. Why should I pay for full benefits of this contract if they have only given me half the benefits. Also when I call through, I cannot get through. It says technical error. I am very disappointed and I don't think I will be paying this bill if they robbing me this way!