This is due to your area's location in Zone A (stiuplated within CBD area) where there is a surcharge apply. Even if your area may fall outside CBD it is still classified under the zone. Areas such as Novena, Tiong Bahru, Dover etc. We will do a refund of your delivery surcharge after delivery is done if you are outside the CBD area. This is a system constraint as Q10 classfied by Central, East, West, North & South. Hope this clarify.
Snack & Cake Shop Pte Ltd 2018-12-22