Zomato — Order promised with in time or free and cancelled order. Pathetic customer service

Hi,
I ordered from zomato. They have offer called on time or free food. Food didn't come on time. App got updated for free food. I got call from zomato team connecting to the restaurant guy. They are coming up with story some other zomato valet took the order and went. But in my phone app it says my valet is still waiting in the restaurant. They are cooking up stories that it was delivered. My question is .
1. Who took the food? wont they have logs?
2. Where it got delivered ? wont they have logs?
3. Okay if they are saying some other valet took and went. What they should do get that food to my rightful place isn't it? But no they didn't do that. Instead cancelled my order and given Rs100 offer promo. What kind of non sense is this. They haven't kept their promise in time or free food to customer. Even the customer care Neha lady pathetic person sending pre texted responses when i am demanding for an explanation. If you cannot deliver the food, you must know to track it and send it to me. They have deliberately cancelled my order and speaking as per terms and conditions cannot we cannot proceed on time or free offer and dodging me in every possible way. They even stopped responding to me. You are not keeping to the promise. Pathetic company thinks we cannot do anything to them. I am attaching proof of screen shot of chat.