Why give a customer free Stamp(s) to join a program?
There is significant evidence to prove that if you pre-start a customer on a loyalty program with some stamps they are more likely to complete the card than if you present the customer with a blank card. This is known as the "endowed progress effect"
Within the Stamp Me dashboard, there is an ability to set the number of Stamps to provide a customer to start a program. These are one-off at the start of the program. ie. they will not be added to the second card.