The Central Station flat became unavailable last minute due to the previous guest's COVID situation. Alexander immediately reached out and offered a larger place, but we declined because it was a 20 minute walk away, even further from the city. He was very kind and worked with us, so that we were able to receive a full refund from AirBNB. He was very responsive by AirBNB message and by phone. It's unfortunate what happened, and I am thankful he handled everything so well. We were able to find another suitable place but it is much more expensive than what he offered.