Cell C is a nightmare

Just when I thought everything was well after receiving my new phone delivered at home.I knew it was too good to be true,the sim that came with the phone was not RICA'd when I went to the branch they told me to call 140 to RICA as it will cost R110 to RICA in-store,I called and was told I need to pay R422 first don't know which fees it was because my monthly premium should be R250 I left the store because I didn't have the money at the time.When they were suppose to deduct the first month they didn't then in the next month they called me saying I'm in arrears I told them to extend my term because I can't afford to pay double then on month end they deducted the R422 anyway.When I called 140 to RICA my sim they said I must RICA in-store because I didn't use my old number for more then 90days.Mind you I'm forfeiting my monthly data/airtime because till today my sim is not RICA'd but they deducting my money.In this month someone from Cell C called again to make arrangements saying I'm in arrears I told him about the problem I have he didn't say anything or made any arrangements.Yesterday when my salary went in the bank they deducted R310.71 when I came out of work around 7pm there was another deduction that went off for R380.71 for what I don't know.I can see this will be a long 24months for me with Cell C because they do as they please in my bank account.I would like to know what to do because I will reverse my payment and put a stop order on my account then they can make my name bad on the credit bureau because it's reflecting negative already with what they doing.I also need to know if I will get my benefits on my SIM whenever they decide to RICA my sim. 30 days whatsApp bundles also doesn't last for 30 days.