Bad Serivce Received

I have been dealing with Simon Letanta since acquiring a quote from ADT on 19 August 2015 but have been receiving constant bad service. It takes at least 3 to 4 days for him to get back to me with either a quote or information I need. Until today I am not setup correctly as I enquired about another door sensor as the installer installed the initial two door sensors on the doors that we do not often use to enter or exit. He sent me a quote last week 3 Sept 2015 which I returned and Tuesday 08 Sept 2015 he emailed me back 4 days later to say that the quote was not signed. Could he not have picked this up sooner? I am struggling with the alarm system as I cannot arm it properly as whenever I set it as away and when I come back it will trigger the alarm as the motion sensor will pick me up as I did not enter through one of the doors with the door sensor. I logged this to their customer [Email Removed] on Tuesday 3 Sept as well and still have not received a response.<br> I would think that such a big company would give better service which is the reason I decided to join them. <br>