Swiggy — Order not delivered after 1.5 hrs and cancelled the order without consent

Date: 23 October 2023
Order ID: [protected]
Time: 10:31 pm
Restaurant: Leon's - Burgers and Wings(Leon Grill)

I placed the order at 10:31 pm on 23rd Oct 2023. After the paymethe nt, restaurant started the preparation and ETA was 29 Minutes. I raised my first ticket at 10:55, saying where is my order. The delivery rider got re-assigned.
I got a call from the new delivery guy at 11:30 stating that the restaurant had not prepared the order since the item had been out of stock since 7:00 pm( it was in stock when i placed my order on Swiggy). I had an argument with the restaurant person for a proper reasoning. He conveyed to me that they had updated the item, is out of stock at 7:30 pm on Swiggy site, but Swiggy hadn't updated it for the customer end. Moreover, the restaurant didn't cancels my order even after 1hr and showed the status as preparation. I got a call from customer support saying the order could not be fulfilled because of non-availability of the item at 11:45 pm. The agent from customer support acknowledged that the mistake was from swiggy's end it had nothing to do with restaurant or customer. Agent conveyed me saying he will refund the paid amount and will give a coupon as compensation( which I didn't receive). I asked for a transfer of call to the supervisor/ senior. The agent assured me and canceled my order at at 12:19 am and refunded my amount without my consent, where am still waiting for the call with senior agent. The ticket still remains active without any communication. I want proper compensation for this inconvenience from Swiggy, as even the agent acknowledged the mistake.