"When I got married last year I added my maiden name to my married name by deed poll and all I needed to do was send my deed poll document to the local land registry office with a letter (including old and new signature) and they changed the land registry record without any problem. (Done within 2 working days). You can find the address of your local office here http://www1.landregistry.gov.uk/regional/
P.S. There was no charge for doing this."
A w banku, gdzie masz kredyt, zwyczajnie podasz im nowe dane i zmienia sobie, tak jak przy zmianie danych wlasciciela konta.