Thanks For contacting us, For LG Unlock service, we have 3 different services. The message that you received only means that the first service failed. We will attempt to unlock it using one of the other services. Rest assured, your LG device will be unlocked within a matter of hours. This service has a high success rate.
Please clear when you insert another network SIM on your phone then is your phone asking for Enter Unlock Code or there is metro-pcs or t-mobile device unlock app in your phone, until we are not able to unlock your phone.