I found this, and it looks real enough.
I'm certainly going to apply for a discount card.
https://www.moneysavingexpert.com/deals ... discounts/
And that led to:
https://www.defencediscountservice.co.uk/index.php
Hope it's of some use as I know there are quite a few of us here who are ex-military. And there are some good offers from various shops and restaurants, eg Yo! Sushi. (I like!)