Swiggy — I did not received my order but Swiggy Customer Executive Denied me to Give my refund

My Order no. Is #[protected], Today I Did a Swiggy instamart order, I did not received my order, so I contacted their support staff they said they are unable to give any compensation to me..this was Very Shocking for me..How they denied..They has been cheating with their customers..i said you can cross check it with your delivery person but they said after investigation we are unable to give you refund..this is swiggy service..which investigation they did? I did not received my order, how they can say my order delivered?They introduce me as a lier ?VERY SHAMEFUL..How they can deny me when I did not received my order, I did my Payment 300 by Amazon pay, I wanted refund from them but they denied directly