Double payment

Good day all. My name is Ntombi Vilakazi I have been with dstv for +-10years now without any hassles. Paying between the 20th and the 26th of every month an amount of R809.00 for subscription and R35.00 for insurance which comes up to R844.00. I would have connection for full 30 days as should. I missed paying end of March and went to pay on the 24th of April at Pick n Pay. When I got there I was told to pay half of what I usually pay which surprised me. I paid that amount then called in to be reconnected. On the 5th of May I got disconnected when I contacted dstv I was told I didn't pay the full amount. I told them that when I went to pay I was told to pay R440.00 so how was I to know what was happening, they told me I would have to pay. I decided to wait till the 20th to pay to get full coverage. I paid on the 20th of this month an amount of R880.00 then called in to be reconnected. Now my issue is that I'm told that I will be disconnected on the 29th. When I ask why I'm told different things. The person I was talking to on the phone says my account has a credit of R394.03 then on the 29th I must call in to change my paying date then I will only pay an amount of R156.00. I then chatted to KBG and MK on messenger. Now they say my account was had and overdue of R178.60 and the connection fee of R50.00. Then they took those two amounts from this R880.00 which leaves R651.40. Then from that they take R242.70 for subscription between 20/05/2019 to 28/05/2019 which leaves a credit of R394.03. Now I don't understand why the amount paid is getting divided like this were as its never been done before since I took this package. I have paid between the 20th and 26th like I said of every month and I've never had problems. I then decided that they should disconnect me refund what I gave them which is R880 then I'll pay on the 29th. I was told to send my ID copy and proof of banking details to ********** which I did. I'm really upset with dstv and I need this sorted out.