07-09-2017 09:54 PM - edited 07-09-2017 09:55 PM
Hello @lozzat here is a link containing everything you need to know about unlocking your device through EE:
You can request the unlock using the online form provided you have owned the device for at least 6 months. 🙂
07-09-2017 10:00 PM
If the device had been on your contract for at least 6 months, even if that contract has now been cancelled, you can just apply using the Unlocking your device form as the Pay Monthly option and giving the mobile number that it used to have. It will first show your current phone on that number & ask whether that is the device you want to unlock? If not, you will then have to type in the IMEI of the old phone.