If you want to unlock your iPhone as Official iphone unlock so you need to contact with only official and authorized unlocking service in uk. So you need to visit UnlockiPhone.co.uk. Just visit unlockiphone.co.uk and enter your IMEI and valid email id and just relax. Your iPhone will be unlock in next 48 to 72 hours. Then you can use your iPhone as you want.
And now you can also bypass icloud activation lock to use your iphone if you get error about apple id lock.