FREE Einstein Bros Bagel Sandwich 9 years ago 3 Comments Free Stuff Refer a friend to the Einstein Bros E-Club and you will receive a coupon for a free breakfast or lunch sandwich. As soon as you friend signs up for the club BOTH of you will receive the coupon for free sandwich, no purchase necessary. Share This Post Facebook Comments Rachel @ Surviving The Stores If you refer more than one friend and they sign up, do you get more than one free coupon? Mercedes Hi Rachel, I don’t know but I wondered the same thing. I would refer two friends separately to give it a try first. Mercedes Carrie from Colorado Springs It says you’ll get one free coupon for each friend that you refer (and that subsequently signs up). Woohoo! I just did mine and they expire 12/7, so you have to hurry up and use them.