You MUST register your Souv Squad card online to get access to and redeem rewards. Digital cards are automatically registered when you sign up online. OPT-IN to receive email communications to ensure you don’t miss out on any special offers and promotions. Valid with in store purchases only, not valid on orders placed via 3rd party delivery aggregates (i.e. SkipTheDishes, UberEats, DoorDash). This program is available at participating Mr. Souvlaki locations.