Habit Burger Grill Coupon w/email signup: One Charburger w/ Cheese until 3/31

[polychrome]

I signed up a year ago for a freebie under the same promotion and last week they emailed me a coupon as a thank you for already being a member. You can apply the value of the Charburger w/ cheese toward something else instead. You also get a free one for your birthday.