All entries get seeds. I'm not sure if you can pick what they send you or they just send you whatever.
You need to sign up to the Yates Garden Club.
Beans,Broccoli,Capsicum,Carrot,Squash,Sweetcorn,Tomato,Zucchini,Peas,Broad beans,Turnip,Cauliflower,Brussel Sprouts,Cabbage,Beetroot,Broadbeans,Brussel sprouts,Lettuce,Celery,Chilli,Chinese Cabbage,Cucumber,Eggplant,Herbs,Leek,Parsnip,Pumpkin,Radish,Silverbeet,Spinach,Spring Onion
If you want, you can then enter their competition.