I also have experienced a siilar situation of poor service in the flat i am living at except this time it was for my parcel.The parcel delevery guy rung the bell from the main entrance to get in the block i let him in but the guy ended up deliverying to the next door neighbours as i found out later that day and he also left a note that i wasnt in. but i was the one who opened the main door for him via the buzzer thought it was really weird. Just wanted to share a bad experience i had with parcel delevery services.