Domino's Pizza — issue regarding 30 minutes or free

Address:

Pune, Maharashtra, 411057

I ordered pizza today i.e 6 Feb 2019 at 17:21 evening and i get the pizza at 18:09. And what ridicule is that i get the msg at 18:28 that pizza is out for delivery. I haven't ordered in bulk and i have paid through net banking. Now how this 30 min or free stupid logo works. The delivery boy said that this process is auto as you will get refund initiation msg within 2 hours and amount of Rs 300 will be refunded in your bank account in next 3 days. But how i will check my update regarding all this. I didn't get any msg of late delivery. How i will track all this. I need my refund
I am also attaching a screenshot of all conversations of dominos. Check it out