American Airlines' AAdvantage credit cards are run by MBNA in the UK. Air miles are offered for every pound spent on the card.
You receive 5,000 AAdvantage Bonus Miles when making your first purchase with the card. This offer could be withdrawn at any time, so check before you apply.
Also bear in mind that loyalty programs can be altered at short notice. You might find that your points have suddenly become worth a lot less. It all depends on whether the provider decides to tweak the system.