DsTV WhatsApp number kept giving error responses when I tried to reconnect my compac decoder.

I am based in JHB and I have a decoder back home in Eastern Cape. On the 12th October I was in EC for a funeral and had to sleep there for one night. I decide to reconnect my compact decoder to watch some soccer. I used their whatsapp number to reconnect. After following all the prompts by the whatsapp number I kept getting an error message until I got irritated and went to bed. Now I have been charged for 2 months subscription for the decoder which the whatsapp number kept giving me error messages and never confirmed I have been reconnected. Had I got reconnected I was going to call DsTV to switch it off when I left EC because that’s how I normally do. There is no one staying there. Why am I being charge for an error massage that never helped to reconnect my decoder?