Originally Posted by VillaNDubstep
I've had reason essentials since feb/march 2012 and I got the free upgrade.
To the Op, if you do not have version 2 in 'your account' license section then contact support and see what they say because as far as I'm aware yes it was and still is a free upgrade. There isn't too much info on here about essentials and props should probably add info to make things a little more clear because as it stands the OP has had no concrete advice that people can say is fact.
Anyway good luck.
I successfully upgraded to Reason Essential 2.0.1!