Address: Alexandra House
 Thornbury
 Bristol
 BS35 2NT
Telephone: +44 (0)845 155 2288
Fax: +44 (0)845 155 2211

Address: BOC Customer Service Centre
 Priestley Road
 Worsley
 Manchester
 M28 2UT
Telephone: +44 (0)800 111333

Address: Harrier Park
 Southgate Way
 Orton Southgate
 Peterborough
 PE2 6YQ
Telephone: +44 (0)1733 230230
Fax: +44 (0)1733 230 333

Address: Northgate
 White Lund
 Morecambe
 LA3 3BJ
Telephone: +44 (0)800 328 3695
Fax: +44 (0)870 444 3938

Address: Church Lane
 Marple
 Stockport
 SK6 7AR
Telephone: +44 (0)161 427 6522
Fax: +44 (0)161 426 0906

Address: Woodend Avenue
 Speke
 Liverpool
 L24 9WF
Telephone: +44 (0)151 448 9000
Fax: +44 (0)151 448 9009

Address: Leltex House
 Longley Lane
 Sharston
 Manchester
 M22 4SY
Telephone: +44 (0)161 945 1333
Fax: +44 (0)161 946 0026

Address: Waterside House
 35 North Wharf Road
 London
 W2 1NW
Telephone: +44 (0)845 609 0200

Address: PO Box 983
 Peterborough
 PE2 2EE
Telephone: +44 (0)845 124 9500
Fax: +44 (0)845 124 9501