DSTV and account updates

I have never seen a company that takes weeks to resolve something that should be simple. I upgraded my package and later downgraded. However I was invoiced twice, i.e for upgrade and downgrade and subsequently I was debited both amounts. I then lodged a refund and I received that. However I appeared to still be owing my monthly amount which I had paid so I paid it again meaning I have now paid for September. After paying that the app shows that I now owe R809 again, but how? Should I be paying this entity everyday, why are accounts not updated, why do we struggle to get any kind of help, the app seams useless, the call centre people tell me it's the system. I cannot be on Twitter for weeks now dealing with one problem after another with dstv, it cant be that no one can update an account.