They promise unlock for GBP 19.99 but the only thing you get is a referral to Apple Customer Service. Well I didn't need to pay 20 pounds for that did I? Then they ask for another 42 pounds for "premium service" - at that point I started reading their reviews which i should have done earlier.
Even if you pay the extra bucks you will get nothing in return, they will just tell you your device has been reported as "lost" or stolen. Avoid these scammers! You won't get your money back, only useless vouchers.