Swiggy — missing item from order and swiggy does not provide refund

Address:

Kolapakkam, Chennai

I ordered from swiggy today for 2 x naan combo and chicken noodles. They charged me for full amount and delivered only 1x naan combo and chicken noodles. One combo was missing and when i talked with customer care, they simply said they cannot do any refund. Inside the package from cm biriyani restaurant, chennai, i see the receipt is for only 1 combo. So somewhere i lost the money and swiggy wont return that to me. Instead they are offering 45 rs food coupon for future orders. This is really unacceptable, i have all the receipt proof from restaurant and my order online, still they wont try for refund.