General slow service

On 21 April 2015 I received an SMS from ADT regarding a special on Early Warning Systems. I immediately rep**** YES for them to contact me as the special was going to expire on the 30th of April 2015.<br> <br> I only received a call from ADT on the 8th of May 2015 - the special has obviously already expired. The lady made an appointment for 12H00 (9th of May 2015) and SMS'd me the details of the representative that will come and see me.<br> <br> The representative contacted me later on the 8th of May to confirm the appointment and asked if we can move the appointment to 10H00. I requested that we make it a bit later if possible and the rep said he would see what he can do.<br> <br> It is now 14H00 and still no sign of the representative.<br> <br> IS IT GENERAL PRACTICE FOR ADT TO ADVISE OF SPECIALS ONLY TO CONTACT INTERESTED CLIENTS ONLY AFTER THE EXPIRY OF THE SPECIALS?<br> <br> IS IT GENERAL PRACTICE FOR ADT REPRESENTATIVES TO MAKE APPOINTMENTS AND SIMPLY NOT SHOW UP WITHOUT EVEN LETTING THE AWAITING CLIENT KNOW?