The Link to the Promo is here (I earn nothing from the sign-up).
As a new cardholder you will earn 5,000 American Airlines AAdvantage® bonus miles when you make your first card purchase within the first 90 days of opening your account. If you spend £1,500 within the first 90 days you can earn an additional 10,000 miles. Better still, spend a minimum of £5,000 within the first 180 days and you’ll earn a staggering 20,000 AAdvantage bonus miles.1
With a total of 35,000 miles in your account you’ll be closer to enjoying your first of many flight awards on American Airlines and over 20 participating airlines, including British Airways to worldwide destinations. What’s not to like about this offer?