Zomato — support team lying

I ordered food at 7 45, and expected arrival was 8 30, but there were no updates on zomato app. So i tried to contact their support team. They were not able to help. After 2.5 hours i get an update in app that food is delivered. But i have not received it. So support team restaurant and the delivery guy are cheating as group.
Also zomato support denied to refund of my money saying that food was delivered whereas it's clear that they are lying.