Terrible service !!!!

I am frustrated at the terrible response from dstv .. I've had an issue over the past two months whereby my service gets disconnected for no apparent reason .. Each time I have to contact the call centre whereby they reconnect services and assure me it won't occur again .. This has happened multiple times (more than 10 seperate times).. After being promised the last 4 calls that a manager will contact me .. ABSOLUTELY NOTHING HAS HAPPENED AND NO PERSON HAS CONTACTED ME !!!!! The problem persists .. As a loyal annual subscriber for many years , I am disgusted and annoyed that this simple error cannot be rectified