Mainly, the so-called "Welcome Bonus" is provided to newly joined clients. This is from 50 to 100 percent of the player's deposit + free spins in some specific pokies. The amount from which the percent is calculated is limited. For different casinos, it can vary from 100 to 1000 AUD.
For example, a welcome bonus banner says: «Get a 100% bonus up to AUD 200 ». It means that even if you make your first deposit of AUD 300, you will still only be credited with 200.
To attract new customers, some casinos give bonuses not only for the first deposit, but also for the second, the third, and even for the fourth one.
There are also rewards for registration on the casino website. Usually, these are free spins that can only be used in a particular game. However, the best online casinos, as a signup bonus, can credit real money, which is intended only for betting in games and cannot be withdrawn.