I looked online to see if I could find any additional codes and found one, Pure18 which I presume was 18% off, however, I tested Pure20, 30, etc, and found they all worked up to pure50, thus if you enter the code Pure50 I managed to get the deal for €27.44 Euro for 27 months!
The only issue I found was that it wouldn't take my card at first until I created an account so if you find you can't pay, create an account then go for the offer and enter the code.
Not sure how long it will last, so enjoy whilst you can!