WAlliance & LeicesterWBarnsley Building SocietyWBradford & BingleyWBritannia Building SocietyWBurnley Building SocietyWCatholic Building SocietyWCentury Building SocietyWCheshunt Building SocietyWCo-operative Permanent Building SocietyWCoventry Building SocietyWHalifax (bank)WSaffron Building SocietyWLambeth Building SocietyWBradford & BingleyWLeeds Permanent Building SocietyWNorthern RockWNorthern RockWUniversal Building Society
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