If you're looking to buy a VPN service then you're probably going to look for some kind of discount, deal or coupon for that provider?
Many times you'll find that the deal has expired or all you can find are old websites with outdated vouchers or coupons.
We've put together an extensive deals guide that lists all of the current discounts for various major VPN providers, take a look :-
http://www.vpncompare.co.uk/ultimate-vpn-deals-guide/