Everyday the delivery charge is changes (getting more expensive). Like recently a food stall that i always frequently bought from keep getting expensive like dude who in the right mind keep charging 40% increase of delivery charge everyday. Consolidate your charging fee by how far the stall and customer and be done with it. Dont just put randomly your charging fee. Not to mention most of your coupons doesnt work all the time (put up only local restaurant coupon, not some restaurant 300km away)