Delhivery — Delivery boy made me feel unsafe

I had an order delivered by Nykaa by delhivery, the boy who came to deliver was trying to come awfully close to me, the delivery code was not sent to me at first and when I told him that he trying to peek in my phone and came really close to me at a distance that didn’t feel safe, when I shouted at him he called a person who I believe was the real delivery partner because after the code was sent to me, he didn’t type the code on his phone but told it to the person on the phone.

There is no proper number or forum for me to lodge this complaint but I’m writing it here because this isn’t a small thing, it made me feel very unsafe, I have it on my cc tv camera if you need proof, this person has come twice to delivery my parcel and each time he made me feel unsafe and uncomfortable

His number - [protected]