My wife and I were part of a tour group whose flight had been canceled two days before the incident. We got a replacement flight from Glasgow via LHR and Paris CDG to Venice. At check-in in Glasgow, I was instructed to get a boarding pass for additional flights at the Air France transfer desk at Heathrow. After the delayed arrival in London, I and other passengers from my group searched in vain for such a counter. There was no information desk nearby. I only learned that we could get a boarding pass at the gate, which was announced about half an hour before boarding time. In a hurry, we reached gate 21 where we received the tickets. I politely asked the official to stand by to issue about ten more boarding passes for my wife and her ten fellow passengers who were arriving on another flight from Glasgow that was also delayed. When they finally walked to gate 21, the officer refused to issue them boarding passes even though the plane was not full. My wife and her fellow passengers were coldly and unapologetically referred to British Airways for tickets for the next day. When I complained to her and her colleague, upset about the incident, I was naturally upset and became loud, and she even accused me of hitting her colleague and threatened to call the police. This was British arrogance at its finest and an example of unprofessional behavior towards her customers!