Bad customer service and no one to help

Dstv doesn't take us customers I've been waiting for call since I wrote a review and nothing happened I'm trying to change ownership and I'm told to come back on the payment date ,my amount keeps going high coz of the additional channels they add without anyone's knowledge My payment date was changed from the 7th to the month 29 and I told them to change it coz no1 requested that now I'm being told to pay an additional R257 because I told them we never requested for it to pay on the 29th so basically dstv goes in my account changes payment date and channels "Disney channels" so now i want the whole thing canceled