Swiggy — Money not refunded for undelivered items

I have ordered 1 Special chicken Biryani and 1 Special Veg Biryani
1 Special Veg Biryani was not delivered and instead of that plain rice was delivered. I have raise complain to support team and inform them to replace item. They told they can't replace wrong item and for compensation they can give Rs 47 Coupon.
But as per guidelines full refund should be given for not delivered item. And Refund should go to my original mode of payment.

They have not given me any refund for missing items also not any compensation

Order No #[protected]
Total Amount : Rs 508 Paid
Item Amount : 240