Domino's Pizza — Refund problem

I ordered pizza from dominos(push road old Rajendra Nagar) at 8.39 pm and I waited till 9 pm and then I call the store but line was busy and they didn't inform me about the delay .
I thought that the order is not going to delivered today so I cook food and ate it
at 10.22pm dominos agent delivere my order but I told him that I don't need it now but he told me that u have to talk to outlet and gave me the order.
I talk with the outlet that I want my refund because it is a complete wastage of my money and had to suffer from mental distress too
the outlet person told me that their outlet is not at fault for not informing me
when I ask him about the refund then he told me that I will not gave u money as a refund instead he offer me a complimentary pizza which I don't need