Your listing showed up when I searched for "entire home/apt" aaccommodation in London for the 20th of December to the 4th of January for 5 adults.
You may have done this already but one thing to make sure is to have the "instant book" filter off in the search as yours isn't an instant book listing. Airbnb sometimes sets it on by default. They definitely do this if the search dates are in the near future or if there are lots of listings in the search area.
Great to meet you.
I just wanted to check if you have seen @Steve's response here as he was able to find your listing.
We have also recently created a topic on Search here in the CC, sharing some more information around how it works, which I thought might be interesting to you.
Making changes to your home this year? Share your 2018 plans here!
Thanks to everyone who took part in the Community Center Project in December.
Looking to contact the Support Team, for details...take a look at the Community Help Guides.