Confusing to say the least.
I just threw in $667 and tried the deposit code "GET15". When I checked my bonus screen I saw bonus code "MAX100" and it's a 5X bonus that gives me 30 days to clear
. Geez, that's better than Party's free bonuses IMO.
Give it a shot. Worst that can happen is you'll have to withdraw, best that can happen is free money.