No, Expanded had to be paid for by everyone who's got it.
For now though, do what I suggested and download the update(s).
You don't need X1a or X1b as these are rolled up in X1c.
The situation with X1d is a little less clear because if at some point you want to upgrade to Expanded, this will only install over X1c, so you'd have to roll back if you've got X1d.