Once you have selected the prize you are going to play for, you need to decide how many tickets you want. They are priced in a way which gives you a free ticket for every 4 you buy.
If you have a coupon code, you will be asked to enter it on the next page, and make even more savings.
You will be asked to make payment. Full details on security can be read here.
You can read more about the loyalty rewards program but clicking here.
Remember, the more tickets you buy, the greater likelihood you have of winning. The quicker tickets for a competition are sold, the quicker it will close and the sooner the winner will be identified and announced.