Get Your Members Back In The Door Right Away For Merchants who choose to use this feature, approximately two-three weeks after their enrollment, your members will automatically receive a Welcome/Thank You correspondence letter or postcard. Both letter and postcard welcome/thank you types are available. You can customize your correspondence thanking them for joining your loyalty program and giving them an immediate incentive to come back and shop/dine; helping to make it a habit for them to shop or dine at your location. We see response rates around 35-40%!