I made my reservation in March, but I called after August and I was able to book it, a few hours later after that call my ticket was reissued by AA (20 minutes time change). I called again and I was told is confirmed (even after the change).
At this moment I'm in Al Maha Resort and my flight is in less than 36hs. This afternoon I called the US number and they told me that my chauffeur service is confirmed and I will get a call tomorrow in the morning... but my Concierge here called to the UAE number and she was told that since my flight was paid by AA, I'm will not get Chauffeur service. I will give them a call tomorrow morning to request a 9pm pick up since my flight form AUH is at 3:10 AM on January 16, let see if they honor the service.