Circle K sandwiches have been recalled in Canada for undeclared milk, mustard, soy, and wheat. Not all of these products have been recalled for all of these allergens. Anyone who is allergic to these ingredients could have a serious reaction if they eat these products. There is no word on whether or not any adverse reactions have been reported to date.
You can see the long list of recalled products, along with product codes, UPC numbers, and reasons for recall, at the CFIA web site. They include Circle K Pizza Burger, Bologna Sandwich, Egg Salad Sandwich, and Chicken Salad Sandwich, among others. They were distributed in New Brunswick, Newfoundland and Labrador, and in Nova Scotia.
If you purchased these products and are allergic to milk, mustard, soy, and/or wheat, do not eat them. Throw them away or return to the place of purchase for a refund.