I had used several times this app in the last with good experiences. But I am not 100% what is happening in London at the moment. I have been one week looking for an apartment for a weekend. I have sent daily requests for flats on a daily basis for a week. They need reply and the reservation gets cancelled. Funny enough those apartments disappear, but other “new to booking” appear in the same area similar price. They are purely scams, and I am even thinking is booking.com plan to make me come back and after not answer settle for amore expensive one. I will stop using it for now. A water of time website.