Pokerroom.com's 20% up to $100 bonus means that you can get $20 of your first deposit into real bonus money. Making a first deposit of $400 would get you the maximum $100 bonus.
To claim your bonus you need to collect enough player points within 60 days. $1 equals 7 player points.
Player points are rewarded when playing in realmoney ring games or tournaments with tournamentfees.