Thank you!
One more question:
I booked this flight through CM. I have 4 flight segments 2 CO Metal and 2 CM Metal - ALL are booked on CM flight numbers.

When I checked the reservation on CO.com, I saw that my PTY - IAH flight is on a CO M class. As a plat, I called the Elite line and asked for the M fare upgrade.

I'm holding now over an hour with no definite answer.
Am I entiteled for a EUA on this fare at the time of booking although it has a CM flight number? If not, will I be placed on the list for EUA begining 72 hours?