How do you get free games posted to you in the UK

I'm not exactly sure what you mean by "posted" and I live in the US. But here we have this thing called Game Fly and if you sign up for it you can get free games delivered to you for free, but you have to pay a monthly fee. However you can get as many games as you want in a month, but you can't keep anything you have to send it back eventually. I am not sure how it works since I'm a girl I'm not much a gamer, and from what I heard from the advertisement that's about as "free" as it gets.
Hope this helps I think the price for the monthly is about $7.99 but you should look the price up to be sure.