Rooms in Rome

The room that we booked was supposed to be big enough for a couple and a 2 years old baby but it wasn't and we had to pay extra 120€ to get a bigger room. We asked for a receipt for the extra money but never received it. The new room wasn't available all the week so we had to switch to the initial room in the middle of our stay. The day after, to checkout and return to the bigger room, the manager wasn't there so I called him, he said he son Mr Alessandro will come to handle the room switch, spent 20 minutes waiting and called him again, he said he's on his way, spent other 20 minutes waiting (between tried to call Mr Alessandro but his phone was out of network) then I was surprised by Mr Alessandro coming toward me crazily and he was crying, I didnt get why so I asked him politely to give me a chance to explain that I was waiting for him for 45 minutes, then he threatened me and said "shutup, if you want this room shutup otherwise I'll put you in the street you and your family, he was literally at the point of hitting me. Being responsible of my family I had to remain calm and I didnt respond to any one of his disrespectful acts. What a professionalism and what an Italian hospitality that they're claiming. The manager apologized the day after but I dont this was enough.