BOGO Original Sized Sandwiches at Potbelly With Promo Code ‘BOGO’ December 20, 2022 December 20, 2022 Get more for your money at Potbelly Sandwich Shop! Today only, they’ve got an offer for buy one, get one free original-sized sandwiches! Get the deal when you order using the Potbelly app ( iOS | Android ) or website with the promo code BOGO.