DSTV Not working

DSTV has not been working for almost 2 weeks now.. Last week all my 3 TV's was working, I changed the channel to SABC2 and we got an error "bad weather, or faulty instillation" I called DSTV thy Guy said we have to change the Frequency witch we did and reset the TV and it worked, but in the same time my second TV went off with the same error so wen I reset the decoder it came back on and the 1st one went off again.... I called DSTV and we tried so many tings and I spoke to 4 different agents, only to get tolled please call an installer.. the installer was trying his best from last week with DSTV but no luck as every time it is a new agent and you start from block one of explaining.. I have extra view the main Decoder is a price lock and this seems to be the problem... as thy said to the installer there is dash's on the network and thy do not know what it is thy had to send it to another department, to clear it off. if thy do and the extra view is switched on the dash's returns. so now I'm sitting with a price lock contract still lift 11 months.. and no DSTV working.. yet I need to pay for something that is not working and DSTV admitting to my installer thy cat Fix it as thy do not know what is wrong. and thy do not know what to do. All the calls are recorded and, and all records on my account will reflect my story the installer did all he can spending over 5 hours on the phone !!!

Please if you cat fix this, can you at least cancel my contract and subscription as I cant pay for service I do not have or is not working.