Leosghost - 12:02 pm on Feb 21, 2010 (gmt 0)
France you can start with the CNIL [cnil.fr] ..( the french side of the site goes into more details and is usually more "up to date" ) ..then progress onwards through the various laws relating to Banks and finance..
Best place for those is La Banque de France [banque-france.fr]( French merchants must also be registered with them via their own bank for what is called "vente à distance" ..) failure to have the authorisation number is a criminal offence .
For the UK .."the data protection act".."the banking and finances act" ..probably the treasury website [hm-treasury.gov.uk]..and the search string "uk credit card regulations" put into your favourite SE will get you started on "distance selling regulations"
And "Eire credit card regulations" will get you started there too :)
The subject is too complex to give you exact pointers to the specific legislation ..but in all cases you personally would be as liable as any of your customers to civil and or criminal prosecutions if what they do went TU