Swiggy — I'm complaining about delivery executive and theft

Swiggy sent me wrong food parcel twice a time on my last order. As for apology, they gave me a coupon code of INR 193/- which is vaild for 30 days. Today I've used that coupon in one of my order. After placing the order within 5 mins, it says that your has been delivered. I was shocked to this, I immediately called the delivery executive..he told that some Punjabi boy came and recived my order by paying the rest of the amount of 40/- rupees. I called in swiggy customer care service and we did a conference call but that Punjabi boy who picked my order didn't speak anything on the call. I don't understand how could that delivery executive gave my parcel to any other person without checking the account name and number. It's a complete case of theft and falsehood. I feel terrified that someone else can see through my data, where that person used my order ID and he even get the parcel.