Originally Posted by
flygod
"Since you have never earned any miles with CX, and it is a free card issued with an Amex, then you don't get Main Cabin Extra."
This is 100% false. I would not accept this answer. How would AA have known how you achieved CX status anyway? Status is status, and AA would have know what I am familiar with to find out how your status was obtained. I would call again, maybe a few more times, until someone who knows what they are talking about answers the phone. How frustrating.