Zomato — Delay in service

I ordered from zomato and the drivers bike got spoil keep on calling him to get an update but no response asked assistance from charlt but no assistance provide also and he is taking time to reply and do something. Suddenly i received a message that it has been delivered but no food has been delivered is this how incompetence the zomato is ??? I want to log a formal complaint about this and i want an action to be take to the chat rep. ANAND KUMAR and provide me an update what action has been taken to him