The discount is automatically calculated at the checkout page (not in the shopping cart) after entry of your email address.
There may be a discount of
2nd order 1% off
3rd order 2% off
The concept is like This loyalty program based on Strawberry Net: http://www.strawberrynet.com/customer-service/
It works with:
- earlybird module
Create a rule that the order customer gets a credit point for each order. So the next time he/she comes to purchase he/she may get a discount.