mebrie

I was accepted to multiple schools (both public and private) that offered me different amounts of scholarship money (30% to 50% off). I was told by a friend that I should contact the schools and ask if they would increase their offers before I commit to one. I can see how I would have nothing to lose by doing this, however I also feel like there is a limited amount of money to give out and that inquiring about getting more could come off as kind of greedy. Any suggestions?