Zomato — Food not delivered but received a receipt for delivery

I did not receive my order (Order no [protected]). I have tried to contact hotel, executive, zomato support but I didn't received any help. The delivery person mentioned he has delivered it but I didn't received anything. Even zomato customer care tried to contact but no response. It happens 4 hrs continously. Very rude, impolite and a liar. Worst part is that there is delivery person contact number, no cust care num to contact the support too. Plz process full refund. Take an proper action against this issue.