Hello, I have a question regarding the way Apple sends refurbished iphones to those who have technical problems with their iphones. In some countries, the mobile operators unlock the iphone for a small fee, or for free sometimes. If you need to send your unlocked iphone back to Apple, and they send you a new (refurbished) iphone back to you, will it be unlocked or locked to the original carrier? Shouldn't they check against their database whether the iphone you send them is oficially unlocked or not? Please note that i'm not talking about unltrasn0w or any other software unlocking solutions. I'm talking about the official unlocking procedure in which the operator asks Apple to unlock the iphone. thanks!!