She was flexible with check in and check out as we wanted to arrive early and leave late due to flight times. Flat was small but this was to be expected in Madrid. The kitchen had all the amnesties, such as tea and coffee, they also left water and milk for us in the fridge which was nice. The location was a bit far out from the sites however the metro is close so you can get there quite easily. We took the metro from the airport and it was not too far from the station that luggage became a hassle. The flat was fine but all the locks seemed to be a problem as both myself and my father both got locked in the bathroom so we couldn’t use any of the locks for the duration of the holiday. I was going to bed at 3am, as I was working on an assignment, and when I went to my room I couldn’t open the door because the lock had broken ( we hadn’t locked the door just by being closed the lock broke). This meant that my 6 year old sister was alone in a locked room which was obviously very worrying. We attempted to look for keys but there were none. Even though we thought the host would be asleep we tried to contact her and evidently she didn’t reply because presumably she was asleep. We had no other option but to use a hammer to open the door. The host contacted us at 9 but obviously but we couldn’t have left my sister for 6 hours. We explained this to her and she still thought the fault of the broken lock was ours so we are responsible for all the damage to the door. We offered to pay half but she didn’t accept so our case will be going through Airbnb resolution centre.