Appointment promised but not kept

As a loyal ADT customer for the past +-10 years, I expected much better treatment from ADT.<br> After much time spent negotiating the best combination and price, I settled on a combination that suited my additional needs. <br> I requested the installation to take place on Saturday 14th November 2015, I was informed to pay the deposit as soon as possible which I duly did on Monday 9th November 2015. Simon the salesman told me that he confirmed with the technical department and that they will contact me to make arrangements.<br> Today I was informed that this will not happen as per our agreement. Is this the level of service that i must expect from ADT. <br> ADT, you are about to loose a loyal customer due to your bad service and poor planning.<br> Also, after all the time that i have been with ADT, they insist that still do not own the alarm system<br> <br>