Just went genting n return yesterday. I book first world for 18 - 20, n I took 17 night coach up, reach around 4+am n still can't check in as too early. Saw from their self check in kiosk, earliest is 6am if got room. So around 6am, I try their mobile check in coz can earn 1 gp, but still no room. So go casino. Around 8+ or 9+, saw from genting app, got room number already. So went down to scan e qr code for room key. But at e kiosk, e person say take card better as scare later phone can scan, so end up took card key. So for those who reach earlier next time, can try this.