The main culprit here is a company called CARTERA, they handle all of the shopping portals of many airlines and other companies. Do a search in FT under CARTERA, and you will see numerous post regarding their practice. Many have commented the length of time it takes to get miles credited. I will send an email to [email protected]. I would send an email along the lines like:

I signed for ADT service in April 2011 and completed the registration process form in order to qualify for 8000 AA miles in accord with the requirements on your site at the time. I'm a current ADT customer, give them the order # and maybe acct #, but the 8000 miles did not show up on my AAdvantage account nor is their any record of my transaction on your site that I can locate. Please send my 8000 miles to AA AAdvantage as advertised on your site. Thank you.

I've had my share of issues in the past with shopping portals that I no longer use them. My wife, on the other hand uses them. Just last week she receive AA miles credit for a March 2011 Itunes purchase.