The delivery guy rang my flat (in a block of flats) but didn't arrive until 10mins later (taking a smoke break? who knows) then didn't knock on the door but I was listening out for my post and heard the letterbox flap as he posted a red missed you card, I raced out the door and called after him then hear him running faster down the stairs. Finally catch up with him and show him my card and that I'm actually indoors - next thing I know, he is up close against my face threatening me to back off and screaming in my face that he is not giving me my parcels? I rang customer services to tell them what happened and how shocked I am, phone charges are 55p a minute and they deliberately keep you on the line asking repeat questions, presumably to reap money from that. Finally escalated to complaints team who won't accept this happened and keep trying to call it an 'altercation with one of their staff' but this was a completely unprovoked verbal attack/physical intimidation and they won't admit this is not acceptable therefore cannot be rectified - presumably because they don't want to be open to getting sued. Offered me a pack of six 1st class stamps as compensation, I guess to be passive aggressive for bothering to waste their time with this complaint. Refused to provide name of the delivery person so that I can report this to the police.