Well they give their address as 1 Norwich Row, London,SW1E 5ER. But this could be made up as well. Everything about them seems false. But I shall not give up.
A bit of detective work....
In my London A-Z there is no Norwich Row in London.
I typed in the postcode you gave and it came up as Warwick Row, around the corner from Buckingham Palace and the following came up at that address.
Bond Woodhouse Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Brands2life, 1, Warwick Row, LONDON, SW1E 5ER
British Property Federation, 1, Warwick Row, LONDON, SW1E 5ER
Carillion Services Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Charles Turner Ltd, 1, Warwick Row, LONDON, SW1E 5ER
China Britain Business Council, 1, Warwick Row, LONDON, SW1E 5ER
Citibase Plc, 1, Warwick Row, LONDON, SW1E 5ER
Deltek Uk Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Douglas Struth & Partners Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Focus Media International, 1, Warwick Row, LONDON, SW1E 5ER
Liaisons Abroad Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Liberty Maritime Agency, 1, Warwick Row, LONDON, SW1E 5ER
Primary Industries (uk) Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Racing & Ballsports Hospitality Ltd, 1, Warwick Row, LONDON, SW1E 5ER
S G S Technology Project Services Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Surfpin Ltd, 1, Warwick Row, LONDON, SW1E 5ER
Maybe give them another call asking them to confirm the address again? If they give the same one, tell them there is no such 'Norwich Row' and that the postcode given is for Warwick Row.
Jukebox Jury