Ok the ad for the quad room shows a picture of three double beds , this is actually the family room.
They have 2 quad rooms, one with a double and two singles the other with 2 doubles. Staying with 2 friends we were initially offered the 2 doubles and the family room was available for a £35 uplift.. They did accept this is how it shows on Airbnb and did provide the room we thought we had booked.
Other than that it was clean and the staff friendly a perfect stay for a night at the Ally Pally. Thank you