Swiggy — money charged for undelivered food

Address:

560068

On 02.01.2019 order no [protected] was made with atharva grand for total rs 479. Out of this, items worth rs 254 was undelivered. On calling the restaurant they admitted missing the otems. On escalating to customer care and email support of swiggy i was informed that money cannot be refunded for undelivered items.
This is pure cheating by swiggy as they will now use the email to not pay the restaurant and at the same time not refunding the money to customer.
Please help me get my hard warned money back.