Follow the steps below to complete the unlock of your iPhone after you have spoken with your designated account representative.
Ensure that you have the latest version of iTunes. You may need to download and install the latest version of iTunes if necessary.
Sync your device content with iTunes.
Back up your device via iTunes.
Erase your iPhone.
Restore your iPhone via iTunes from your previous backup. You iPhone will restart after this step.
After a restore, "slide to setup" will appear on your screen. Follow the steps in the iOS Setup Assistant.
In the event you should have any problems, you should always speak to your designated account representative to further help.