They offered if buy food costs more than $15, free delivery fee. They still charged me $10 for $35 food. Another time I tried offering my friends to get $10 off. After done the whole process, both me and my friend didn't have that promotion still. I gave it a try 1 more as I became Uber One membership. As it said, memberships receive $0 deliver fee if order more than $15. Nothing applied when I make my order. You're such a fraud!