Bill keep increasing

My father has been a very good customer of Cell C for many years. Never had a problem with them. On the 9th of December he passed away and because he just got an upgrade a month before, and I was in possession of the phone, I said I would continue paying for it. The first month's payments were all fine, it's what he paid. But after that, I've been having problems with Cell C and Get More. Get More is a service we never asked for, but they billed my father every month until we found out about it when we went for the upgrade. We have been trying to cancel this service for 4 months. In February my mother finally got them to cancel it and they sent us a refund, but then just to see in March, they charge me double when they activated it again without my knowledge. My bill keeps getting higher every month with Cell C and with losing the main source of income in the house, we really have to save everywhere we can. Cell C really makes me feel like just canceling my contract and moving to another network. And when you phone in and enquire about these things, some are nice and understanding, but some are just utterly rude. I do not have money to keep spending on Cell C slip ups. I am already struggling as it is, and having a contract is a luxury so if they do not stop charging me with unnecessary things, I will cancel it, give the phone back and move to another net work. I have never phoned Cell C so many times as I have in the last few months that I had to deal with them about this contract. Everytime having to explain to them the same thing is really unnecessary. I want to get this contract lowered that they will charge me for that too so I have to wait for the new month to do it because my bill is already R863 from being R450 or below. And the Get More people keep saying someone will call me to deactivate it but they never do so I have to keep phoning them which is unnecessary.