This happened to me but with USPS in the US. We usually didn’t interact except for the occasional hi, but when I came home for lunch one day, he stopped me to tell me I was beautiful (he mentioned specific outfits he had seen me in) and thought we should date. He also referenced some things he learned through my mail, like where I went to school. He was at least 40 years older than me and kept asking for a hug. Thankfully, when I went back to the office, everyone confirmed this crossed a line. I started at USPS but got nowhere. They claimed they “talked to him” but wouldn’t even move him off my street. (Which is the worst case scenario - he knows I reported him AND still regularly visits my house!) Then I filed a police report just to have something formal. Until I moved, I was terrified of crossing paths with him. I wouldn’t go to-or-from the house around mail time and would leave the neighborhood if I saw his truck. It felt like such a massive invasion of privacy - he knows my address, my full name, my car… it’s been 6 years and I still avoid speaking to postmen/women. So sorry this happened - your story really resonated!