You have to admit TWI's support for their games is outstanding - even without taking into account how small a studio they are.
Now to your prize...
How many votes did it take to win the award? How many of those were yours? What percentage of the revenue since then was earned because of the advertising the game received by winning the award? How much exactly do you think you should get for your "support"?
And unless you are exaggerating by a few thousand percents, don't you think you already got that from one of the extensive content updates for the 15 dollar game (if you even payed 15 dollars for it, seeing that it was on sale so often)?
I really don't think you are in any position to complain.