RAT 5 - consumer credit laws vary between countries. If in the past you chose to look at the UK version of the Ryanair website, then you will be deemed to be a UK resident, and thus shown the credit card advertisement for UK residents that complies with UK consumer credit law. If however you were looking at the Italian version of the website, you would likely see credit card marketing that complied with Italian law.
It is extremely unlikely that if you applied for a credit card with UK terms+conditions, but supplied an address outside the UK on the application form, that a credit card would be issued