[Update] So it seems the page has been taken down, so your time to claim the free season pass is over.
Recently Bethesda upped the price of the Fallout 4 season pass, from £24.00 to £39.99, a price which they justified because they have developed more add-ons for the season pass then they originally expected.
However if you act now you can get a huge saving.
This is because the Fallout 4 Season Pass is currently free on the UK PlayStation Store.
Of course, this is a mistake on Sony’s end, but if you act quickly you can take advantage of it and reap the benfits of a free season pass.
You can pick it up here.