Fed up with Cell C

I have a contract with cell c and took out c-surance on the phone. One day the simcard just stopped working and it keep on telling me no network. When I visited the store they informed me I have to do a sim swap in order for the sim card to work but by that time I did not have the R80 to pay for the sim swap so I never did the sim swap. The phone fell and it was still working the screen worked but was cracked. The phone then said there is a system update that need to be done on the phone. We took the phone in so cell c can do the update. They refuse to do the update as the phone have to be repaired because of the screen. They refuse to repair the phone through c-surance as the sim card that had no network coverage was not in the phone and they refuse to do the update as well. Now I have to pay R80.00 for a sim swap in order to use the sim card that once again have the same problem, have to pay the c-surance that I can not use and pay for the phone that I can do nothing with. When calling the consultant of c-surance they say sorry sort it out with cell c, when speaking to cell c they say sorry it got nothing to do with us. You do not get any help from them and you just have to keep on paying... Fed up is not the word!!!