In January 2020, posts on Facebook from December 2019 recirculated, stating that the fast food chain Chick-fil-A was promoting a free food offer.
The promotions were indeed real, at least at one point. A representative for Chick-fil-A told Snopes that each Chick-fil-A location is a locally owned and operated franchise and could hold special promotions limited to each location. So the promotions seen in the above posts applied only at those specific restaurants.