Swiggy — give back my money 515

I have placed an order on 11th jan in domino's thru swiggy app.. I made payment thru my debit card.. Once payment was successful.. I haven't recieved order confirmation.. I can't reach swiggy support centre too.. Order value is 515.. I called domino's directly and asked whether my order has been placed.. They said no.. Still for more than 3 days it shows awaiting order confirmation and now it shows order delivered.. Even now i can't reach swiggy support team... Now it shows my number is used for 6 months.. I don't know what is thi.. I want my money back..