The catch is that it's exclusive ONLY to UK citizens 
The market leading, UK’s longest balance transfer offer
- 0% interest on balance transfers for 34 months from account opening (2.99% fee applies)
- A fee of 3.5% will be applied, then reduced to 2.99% by a refund terms and conditions apply Opens a new window
- 0% interest on purchases for 6 months from account opening