Hi. I have used the above company to unlock my iphone.
I have to admit i was doubtful of their claims but i decided to go with them as it seemed to be the right product for me.
After purchasing i received a link to their video tutorial and software within about 10 minutes. I began the process which was fairly easy to follow (i did get a little stuck in one place).
Anyway the unlocking of my iphone was succcessful. It took me about 15 minutes, but i did do it.
I havn't tried any other iphone unlock websites, obviously, but if you need your iphone unlocking i would go to
www.iphoneunlocking.org.uk as their product does work and this is what you want at the end of the day.