What is the where can i see the referral code in gcashbiggest arena in Asia?

deskgame2,500 Reward Credits are awarded immediately after wagering $25 on any game (within 7 days after signing up). deskgameThis option is only available in Arizona, Colorado, Massachusetts, Maryland, North Carolina, Virginia and District of Columbia. deskgameYoungs signed up for DraftKings in 2016 for its daily fantasy wagering. deskgameOnly sweepstakes coins can be redeemed. Gold coins can be used only to play games.