Fans can sweeten $5 Biggie Bag purchase with a free Frosty treat exclusively in-app this June DUBLIN, Ohio, June 20, 2024 /PRNewswire/ -- Biggie-er Summer: Wendy's Fans Can Celebrate 5 Years of Biggie Bag with a Free Small Frosty with Purchase of a Biggie Bag with offer in the Wendy's App. Biggie-er Summer: Wendy's Fans Can Celebrate 5 Years of Biggie Bag with a Free Small Frosty with Purchase of a Biggie Bag with offer in the Wendy's App. WHAT: It's a Biggie-er summer! To celebrate five years of the best d ...