Adt useless

My alarm goes off at my house no phone call from adt nor a response vehicle my siren does not sound I proceed to contact their service center to enquire why no vehicles came and why no phone call received

Just to be told that oh sorry we did not receive a signal from your alarm but I can book a technician to come out and look at the problem

Now here's my thing when I signed up I paid for icasa connection I paid my monthly premium to adt why must I inform or enquire why adt are not getting a signal from my alarm or why no vechile or contact was made with me why did I pay a connection fee then? why must I pay a technician to come out and have a look at my alarm when it was adt that approached me for connection and everything worked fine. why did adt not inform me that something is wrong with the alarm why must I double pay for a service that adt is supposed to provide me

DAV01624