Thank you for the welcome RedVee. Been a long time lurker on here I'm not sure how to include a screen shot within my post but the £537 is just the price displayed on my 'Find cheapest fares' page. I'm seeing...

Sep 2012 £792
Oct 2012 £596
Nov 2012 £596
Dec 2012 £596
Jan 2013 £596
Feb 2013 £596
Mar 2013 £537
Apr 2013 £694
May 2013 £694

As it's £596 for Oct 2012 to Feb 2013 it looks like it's a basic eror on the BA website. Especially as PanGalactic is getting £567. The only constant in all of this is the actual price of £596 that i'm getting too.

Not to worry, that £59 will only have ended up in a casino's pocket anyway!