My package was delivered to my neighbour. The addr...

My package was delivered to my neighbour. The address on the 'we delivered it to your neighbour' note said : Neighbour 15.
I live on number 84, number 15 is across the street and on the opposite end of the street where I live. Was it delivered there? Or was it taken to the street Neighbour on number 15? I called the office, they have no idea what the delivery guy means and where my package is... absolute mess.