The second line of my comment above is a copy and paste from the email they sent to me. It has all the information you need.
Closer inspection of what? Have you got picture of something or a screenshot of an email? Thanks
On closer inspection, you need to call to book! (Sorry for the confusion) To claim, call us on 01509 892260 before the 31/08/2017 and quote RTN30 to us and that’s it! Boom! 30% off!