Swi*gy delivery scams???

A little shaky while typing this. I ordered food not very long ago and everything was going well. The delivery guy called me and said that there might be a delay cuz his bike got towed and he's coming by auto. I said no issues. He comes in the next 15 mins, I get my order and he says that his bike got stopped due to the license registration and if I could help him with some cash. I was hesitant to pay outside of the app because I wasn't really sure if I should trust him. I refused and he said if I could just give him 500 or some money and he'll pay me back. I really did not want to share my number or address with this person. I just wasn't feeling very right. I refused and closed the door. He rings the bell again and says that he delivered someone else's order by mistake to my place and that it's an order nearby. I tell him that these are my ordered items but my name wasn't written so I couldn't really prove anything and I gave him the order back. He said someone else will come and give me the order. I go back to the app and ask where my order is and call the delivery agent who is still this same guy. He doesn't pick up my call. I get in touch with customer care who after a while puts me on a conference call with this guy. He starts saying that he has delivered my order and that I'm lying to get a refund. He asks me to go and check cctv and what not. I tell them about this extra cash he asked for and he continued with the same me wanting to get refund back and blaming all of this on a delivery boy. I really did not know what to do. I told them not to give me a refund at all if this was an issue. Just to give me my order. All of this has just scared me a little bit. Though I know his name but he knows my face, address and number. I guess I'm writing so other people are aware of this as well.