unlocking with T-Mobile
T-Mobile charge a flat fee of £20.42 for unlocking phones. This applies to both pay monthly and pay as you go customers and can take up to 10 days to unlock.
Pay as you go customers can request an unlock at any time, whereas pay monthly customers will need to be activated on the service for six months before they can unlock their phones with T-Mobile. They need to have an account balance of zero and everything should be paid and up-to-date before requesting an unlock.
The phone number to request a "network subsidy code" is 0845 412 5000 . Or you can fill in your details here.