Most online casinos offer a welcome bonus, also known as a first deposit bonus. This bonus is for new players who deposit for the first time. But sometimes this can also be applied to the first few deposits that players make after registering an account. Usually, casinos match the deposit amount with a certain percentage. For example, if the welcome bonus gives a 100% bonus, then you will receive a 100% bonus on the amount of your deposit. If you deposit 2,777 baht with 100% welcome bonus, that means you will get 2,777 baht + 2,777 baht = 5,554 baht to play.
Here is a list of welcome bonuses for Thai players: