Zomato — Delivered to wrong person/address

The delivery person harsh kashyap and his no is [protected] from zomato picked up the order from. mcdonalds and never delivered to us. And his no was also not reachable as his incoming calls was not available due to insufficient balance so neither he called us not we were able to reach him.
Now zomato is not refunding us back the amount of 271.90 saying that we cannot do anything because he was not reachable.

And neither they are getting in touch with that person.

I need mt money back because zomato refused to give us the replacement order.