During some months offer promotions are offered. If offer promotions are being offered there will be a small banner over your Account Profile. Click this to see the details of the promotion and the time which it will be available.
Offer & Task Contests
There are offer and task contests every month on the site. You could earn 4000 extra points on top of offer earnings. To see the details of the contests just scroll over Community and click Contests.
Try Your Luck
After completing offers you may be randomly chosen to receive points with Try Your Luck. If chosen you will be asked to select one of nine cases and they will give you some points when you click one.