Your limit price falls outside price step rules. Stocks trading at prices up to 10c can be priced at 0.1c steps, stocks trading between 10c and $2 at 0.5c steps, and stocks trading over $2 at 1c steps. For interest rate securities any market price at 0.1c steps
The minimum order value for a BUY order is 500.00 AUD excluding brokerage. The value of this order is 33.111 AUD.