i am 68 wife turned 64, page-19

"The card is a valuable asset. Hopefully you will qualify for 1 each. It gives you discounts on all your prescription medicine as you will normally only pay $5~ each prescription. You can get a discount on your council rates and water bill."

Check with your local council on this.
Where I live my Commonwealth Seniors Health Card does not entitle me to any discount on council rates or water.
You have to be receiving full or part government pension to get this discount.