Written on: 13/01/2013
Just successfully unlocked by BB Curve 8520 with code provided from this site. Very easy to use - I clicked on one of the companies listed on their 'Trial Pay' pages, filled in some details (and in the process got myself a free t-shirt with my company logo on!) and next day I was sent the code to unlock my phone. They sent numerous different codes to try and the second one worked perfectly. Phone was originally locked to Vodafone UK and I'm now using it with a foreign sim while I'm abroad.
Definitely recommend it.