Goodbye management, kitchen staff now run your Resturant

For the last 3 years kids eat free on Sundays, as a single parent with 2 kids, it's never been an issue, however today in order to qualify for the deal, I have to order 2 meals, so my kids can eat free, yet the food item we wanted still is out of stock,( only for the Last 2 years) yet it's still on the menu, ) also strange that this new rule I've just been told has come from the kitchen staff,,... I'll let head office international and Canada know, so that this can be clearly stated in the kiddies/ menu in writing.