Jack in the Box on Instagram: "for the rest of September, continue to get FREE small curly fries when you donate $1 to No Kid Hungry! 🍟 Offer valid through 9/30/2025 at all participating Jack in the Box® locations. One coupon per guest, per visit. One offer per coupon. No duplicate coupons accepted. Not valid with any other offer with the Jack App. Jack in the Box® is a registered trademark of Different Rules, LLC. ©2025 Different Rules, LLC."