Telephone 0800 072 0042 (Freephone Monday to Friday 8am to 6pm).
The call centre also has a language line.
Write to Westminster Benefit Services, PO Box 82, Erith, DA8 1WJ.
You can use a free phone to speak to council departments at our libraries or Westminster City Hall.
To see a member of staff in person regarding either your Housing Benefit or Council Tax Support, visit one of our reception offices:
101 Orchardson Street, London NW8 8EA (Monday to Friday 8.30am to 5pm)
180 Vauxhall Bridge Road, London SW1V 1ER (Monday to Friday 8.30am to 6pm)
We offer a full translation service from all of our offices and a textphone on 0845 0700 281. We can also provide documents in alternative formats such as Braille, large print and audio.
If you are unable to visit our offices because of a disability or if you are a vulnerable person, we can arrange for an officer to visit you at your home.