After you have entered the entire field you will be presented with the estimated delivery time as well as the price for this unlock. Now this will vary from device to device. It is better if you would go with this website thoroughly and checking them your unlock device.
After that, you need to head back onto your device, switch it off, and then insert in non-supporting SIM card so an SIM card from a different carrier. Once you have done that you simply need to restart the device and after it finishes loading then you will be presented with a screen that will require your “SIM network unlock PIN”. The next step here, you will need to enter your unlock code. So just skip back to that email then inset in that code. When you have done that simply tap on unlocking and then you will see a message saying “requesting network unlock” and then network will be unlocked successfully and then your device will be fully factory unlocked and you will be able to use it with any GSM carrier.