You just have to stick to legal, regulated online casino sites such as BetMGM, Caesars Palace Online Casino, FanDuel, Betway, bet365 and BetRivers. They offer great casino game ranges and they will pay out quickly and without any issues if you win.
When Singapore passed the Remote Gambling Act, many major foreign bookmakers stopped operating in the country to comply with the new laws. Bet365 is among the sites that is no longer available to users in Singapore.