I am currently in the process of trying to unlock my phone from Cellunlocker.net for my UK Orange PAYG phone. I don't know what batch my phone is or how to tell you that but I phoned around every unlocking shop in my area and tried every unlocking site I could find online and only Cellunlocker, another site with a very similar name I forget or Mobileunlocked.co.uk claimed to be able to unlock the phone on the 9/10th of November when I first was looking and got my phone. I decided to use Cellunlocker, as it was the cheapest at the time (cost me ?25 and they're not charging nearly ?40 for the same phone) compared to the ?55 Mobileunlocked.co.uk wanted. I figured that if it went wrong or they couldn't unlock it I could always get my money back through paypal. Also Cellunlocker said they could do it within 3-10 business days whereas the other one said 4-18 business days.
I've repeatedly emailed them over the intervening time and they've reassured me that they are able to unlock the phone and I am due to receive my code today. I'll post back in here when I know more. The website stresses the 3-10 business day thing isn't a hard and fast rule (I believe the 10th day was actually yesterday) but I'm anxious to put my 3 sim in this 920 just like anyone else and I'll let you know when I know more!
EDIT: Just received this mail;
Hi there,Thank you very much for your patience. Unfortunately there's been delay with our manufacturer due to high volume of order for these models. However we are trying our best to rush this order for you, the results will be returning shortly later this week, or next at the week at the latest.
So it seems like I'll have to wait until tomorrow or Monday to get my code. Grr!