Swiggy — Refused to provide the refund for the ordered item

I have ordered a pizza and soft drink worth 470rs. When i noticed the delivery bag i found soft drink was missing and one of the pizza was half baked and veggies are not really cooked. It was totally a mess when i checked with swiggy customer service i was granted only 57 as the token of sorry... I don't know how will be a sufficient solution. On top of this I'm the swiggy one subscribed member