Disappointing service

I have 3 contracts with Cell C and once again I have to complain about the same thing over again. One of my contract sim card is not working and i am not finding any joy with Cell C regarding this matter as they keep making excuses regarding technical issues while I am paying my monthly fees/charges on a contract that has not been working for 2 months now. For me to do another sim swap on this particular contract and gets charged I feel it is not fair service, clearly Cell C is not willing to assist and I would opt to terminate the contract on this particular number***) because for 2 months now i have been paying for an account that is not active. Very disappointed once again at Cell C and their service, as we experienced same issue last year December.