Swiggy — Chilli cheese toast delivery

On 10 sep 2022 I ordered a chilli chese toast and cold coffe from Star bucks from swiggy app. The food, chilli cheese toast, delivered was stale and smelled bad. When I reached the customer care of the app they said they could only refund 61 rupees for an order value of 295. I asked them to arrange replacement but they did not agree. They are not giving me any explanation as to why only 61 rupee are being refunded and keep on stalling me.