Zomato — amount charged for delivery but mail not delivered

Address:

New Delhi, Delhi

I had placed an order for a meal with zomato and the amount was also deducted for the same. After waiting for about 1 hour, i get a mail from zomato that the order had been cancelled since my number was unreachable. But i didn't get any call from their delivery person and also their location tracker was also showing that food is being prepared. I really don't understand that where was i at fault and even tried contacting them and communicated them the same. So i want to file a complain against them.