Had an email back from Zooplus, prices are to increse as follows
Thank you for your e-mail. In order to prevent having to increase prices on Orijen again soon, with the August 1st increase, prices will increase up to £4 or £5 on the large 13.5kg bags, depending on the variety.
We apologize for this price jump and thank you very much for your understanding.
Best regards,
Your zooplus Service
Having just called into the pet shop for some treats, they said Burns have hiked their prices again and another increase expected in September!