Cell C sucks!

I am appalled at the level of inaccuracies on the cell C get more app, first they called and explained about the app, it seemed like a great product and so I accepted the terms and charges, that of course went off without a hitch, I then called to find out how exactly I can use the app, I specifically wanted to use the movie discount, I then called and was advised that I need to use the app, and create a profile, I struggled to use the app and gave up, a few weeks later I tried again, called, was told to use the app, tried and it kept saying my information does not exist, this morning I tried again and now when I tried to create a profile it keeps telling me that the email field cannot be empty however, there is no section to put in an email address, just password and reconfirm password fields, I then called as I was billed for the service yesterday, billed a prorated amount which was obviously higher than the monthly charge, I did not have a problem with that as I was explained that will happen, however I'm being billed for a service that I have not used at all not because I didn't want to but because it's impossible to use, I then called and asked for assistance, the lady explained that she sent me an email to use the link and refresh the page so it should no longer ask for an email address where there is no email field, I refreshed multiple times and then tried again, and of course it's still asking for an email, then I asked what is the procedure to cancel this service, then the ladies attitude changed and because snippy, I was then advised that I need to give notice and then wait 30 days and then they will call me back to finalize the cancelation after 30 days, so essentially I'm going to be billed again for another month before the cancelation is complete, after not having been able to use the service once, and not for a lack of trying, the fact that I cannot get into an app that should work in a straight forward manner is ridiculous, I have been a loyal customer to cellc and pay my cell phone contract every single month without fail or incident, but it seems cell C only works well when you are paying them, but not so much when you need help using the services you pay for. I will be moving my cell phone contract when it is complete as I cannot give my hard earned money to a company that does this to their customers.