Zomato — amount not refunded illegal holding of amount

Address:

ganesh galli bandrekar wadi, 400060

Dear sir,
I order the attached order summery the delivery boy refuse to delivered the order and zomato is not cooperating and not refund of money it, zomato representative are not cooperating at all, have to file appropriate complaint, please guide for the appropriate complaint for not refunding the entire amount, if continue such attitude of the authorities will harmfull.