Thanks Valcan:
You actually answered the other question that I had but did not asked "What is the Z class".
I am now Silver Elite with CO and can upgrade (at midnight day of travel) to Business and/or First Class but not to BusinessFirst. At the moment, the upgrades look good (still a long time to June). It is C9 D9 and Z0 but there is only about 15 people in coach as of now.
Wish me luck.
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