Paying for an inactive unit

My unit got disconnected in January, I have since called 3 times in 1 month to try and get a technician to come and look at my unit and everytune Im told that a the hnician will be in contact. It been almost 2 months and Im still waiting for a call. When I need the device to be installed I got feedback within 3 days but now that I'm paying for the unit Im constantly the one calling and getting no help yet every month I must pay for a unit that's inactive!!!!