Incorrect billing

Hello I have a huge problem with Dstv claiming that I owe them because "apparently" I didn't pay and they let me watch on credit. Honestly I don't even know how to explain my shock because 1. You pay before you get connected and 2. You cannot watch if you haven't paid. Those are the fundemetal rules of Dstv.

Today however I'm being accused by dstv of owing amounts I do not know. They act as if they don't know that they have billed alot of customers incorrectly but continue to act as if my case is unique. It's so hard to resolve this issue because I choose to pay cash. Maybe they will help me now. Goodluck to me. After going through social media and sending emails, this has left me confused and unhappy