A bonus is not a regulatory exception
Offshore bonus advertising does not change Australia's prohibition on operators supplying online casino services. Large matched deposits should not be framed as authorised local promotions.
A bonus can separate deposited cash from conditional promotional credit. Check whether accepting it locks withdrawals or creates conditions that encourage additional spending.
Turnover can deepen exposure
A high advertised percentage conceals the actual amount exposed during repeated wagering. Restricted games and maximum stakes can also make the promised value difficult to realise.
Declining an offer is often clearer than trying to complete it. Never deposit again merely to preserve a bonus that would otherwise expire unused.