Most sportsbooks will automatically give you your free bets once you register. However, some require you to opt in for the offer. Once you do this, you should receive your free bets.
Usually, the bets at the Casino start from SGD 25. Rules & Regulations: Valid ID proof is required for Singapore Citizens, Permanent Residents, and Non-Residents. Some of the valid proofs can be Driving License, Passports, NRIC, Immigration Pass, Student Pass, Work Pass, etc.