You can view your BUB Bucks balance by logging into your beachbub.com store account and then clicking on the 'Rewards Program' link on the right edge of the screen.
To cash in your accumulated BUB Bucks, simply choose the discount you wish to cash in (500, 1000, or 2500) and click the 'Redeem' button.
You will be given a Coupon Code that you can use at the time of your next check out. When you check out in the store you will simply key in the coupon code to receive your discount.