Fed up with bad service and changing payments

I've been a dSTV customer for a whole while now . First I had a half a package then they offered me a 699 premium package after that I got an sms saying I could pay 760 rand for a premium package for 24 months all of a sudden I get an sms saying to pay 900 and something so I call and the lady tells me I got the sms from head office but she will forward it and I continued paying 760 today after paying my account I get an sms saying that my account is overdue so I call and speak to a consultant who seems to not know what I'm talking about can't find anything on my account so I ask about the previous time I called andI don't even get what he is saying . Telling me about the promotion I had before the 760 . Spoke a whole bunch of airtime out with him they don't have any consideration and keep putting you on hold time ran out and didnt get any answer back . Im thinking of just leaving the service all together doesnt seem like they appreciate good paying customers and I'm just fed up.