Bad service

I am very angry and annoyed with DSTV. I made an online payment on da 21st of Jan n they didn't get the payment and eventually it was updated. 15 Feb they disconnected me saying i had to paid and i asked how as i was connected from Jan and my next payment is Feb 21 and they asked for proof of payment which i sent again and i was connected. Today 18th of Feb an agent calls me and tells me that i owe R585 because i haven't paid. I asked her for what she cant tell me and she said she will get back to and i am still waiting. My question to her was how do i owe when i was connected from Jan till now because if i was owing my service would have been cut already. So i need to someone at DSTV to tell me what the hell is going on because i am sick and tired and fed up. If this is what i am going to go through with them daily n monthly then i am better off without their service