No Internet Connection for days because Router just disappeared from their System

Multichoice is the worst,I dont know how much I have spent in airtime and data contacting their useless contact centre...They still have not resolved my issue in the meantime I have no internet connection for days on end because nobody knows where my router is..apparently just disappeared from their system and My Dstv account...I was told there was a system upgrade but How is that my problem as a subscriber?I still maintain Multichoice is useless and careless..its operated like a ****a shop..