Hi Arnold, I´m sorry for that too. Have you been back to Haus K since September? Thanks Henrietta for the alternatives :)
On fluechtlinge-willkommen.de/ just click "You are a Refugee?" and you can register and start to look for apartments. Flüchtlinge Willkommen ("Refugees Welcome") connects refugees with apartment-sharing communities.
I also found home4refugees.org which is still under construction but you can sign up for a newsletter to find out when the app is ready for use.
And one last facebook group where you may be able to get advice as well as search for apartments:
Keep us posted with how the search is going!