Bad service

Multiple choice is the worst. My DStv was witches off today and I am on DSTV access and I am told that I have to pay R576.. and I pay every month and now I am told my billing date is the 10th and I never chosen the 10th. Everyone I phone I am told a new story, I have another DSTV that I don't know about. I phoned 4 times today and everytime they are saying they are checking and never come back to me. In the morning they said they will call but no call received DStv you don't care about your customers,no service even if my airtime is finished you won't call back