I have started receiving loads of personally addressed charity letters recently and I wanted to know where they had got my details from.
Turns out it is www.subscription.co.uk
with whom I had 2 subscriptions to airgun mags, they were referring to charities from sister publications. i.e. the charity letters from RNLI were sourced from Sport Diver magazine.
I signed up at the Midland game fair in 2013 or 14 and as always I ticked the little boxes that essentially say don't spam me.
Cancelled my subscriptions now from them and will just buy nice and anonymously in the shops from now on :-)
If you subscribe and don't want them to sell your details then you will need to call them on 01858 438832 and ask them not to.