I've re-funded my rf2 a while ago, yet I got the same mail. So out of curiosity I've tried, and I could activate it on steam. Interesting. Yep, activated, installed, played. I don't know if online works though - I didn't try.
Dont even have it installed anymore, just cant handle the pacman graphics
In the worlds before Monkey, primal chaos reigned.
Heaven sought order.
But the phoenix can fly only when its feathers are grown.