Virgin America Elevate - Can I prepay Elevate fees as credits (and earn points?)

I'm gathering points in anticipation of redeeming them for F to Europe on VS next month (after the next credit card statement date). It takes 50K Elevate miles + $1200. I'm getting real close to 50K - Could I somehow "prepay" that charge somehow as a Virgin credit using my VX card and earn points before buying the ticket?