Bad service,

I have a cell phone contract with cell, that i made in 2017 it was supposed to end this november i lost my job 2018 December my last payment was march 2019 at cell c hence I informed them about my job loss and was advised to call insurance department to pay the outstanding balance , i did so to my surprise the insurance department agree on that few minutes after talking to them I received an sms saying my services is being cancelled , i then called cell c to fix the matter they said I must have asked for ref / case no from insurances stating that they will pay .I called the insurance department again and was told they can't do anything since I'm no longer their client and when i tried to cancel the contract they said I must pay R700 cancellation fee of which I didn't have now am handed over and my line is blocked I tried to call them to make arrangement I fail to reach out to their financial department