Offers and Promotions KFC Singapore Coupons: $10 Zinger Box, Free Hash Brown with $6 Spend and $5 Off $50, Until 31 Dec 2026 KFC Singapore's coupon page lists everyday deals, including a $10 Zinger Box, a free Hash Brown with $6 spend, and $2 off $30 or $5 off $50, valid until 31 Dec 2026. Nov 10, 2026