Swiggy — Not refunding my amount

Address:

Swiggy

I was ordering the food from swiggy. Due to swiggy app issue amount get twice debited and both was successful transaction. As per bank report both transaction are successful. But swiggy first said that they don't havee recieved any money. On second day they are saying that the order was fail hence they had initiated refund. So. Why first they had told me that they haven't received any order amount. On third day the officer said me that amount will refund to my account onthe same day. But even amount not received yet. Again they are saying me to wait.
I am in very need due to swiggy i am sleep in empty stomach as i dint have any money to buy the food as they had taken my amount and used that amount for 4 days.
High action shoukd be takken on them otherwise i need defamation of 4 days.