Annoyed DSTV client

On the 30/04/2017 I bought a DSTV HD decoder. Suddenly in December 2018, 9months later I am sitting with signal problems. Two weeks without DSTV I went to the branch in N1 city Cape Town. I was told that my device was faulty and that I need a new one. Keep in mind I already paid for January 2019. I was told that they are out of stock and that they will call me when they receive stock. Until this day I am still waiting. I asked what can be the cause of me not getting signal? I was told that it is a normal electronic fault. Never in my life I had a problem with any electronic thing I bought. Never experience such ****ty service before. Rather stick with the older decoders as the quality is better.