If you bought it from T-Mobile there were some stipulations that you needed to fulfill in order to have a device unlocked. You can view them on the Unlock your mobile wireless device page. When you fulfill the requirements you should be able to get the device unlocked, though this process can take some time.
Let me know if you have any questions/comments
Hi, I have a similar problem. I bought 1 iphone in Ebay and come like T-mobile unlocked. I live in Brazil and here is a different contract (VIVO). When I take off the chip from T-Mobile and put the VIVO chip, appear a message to enter in contact with Apple. I did this, but they ask me to enter in contact with you. I would like to know how I unblocked this device to use here in Brazil. To send a message to you I need a number from USA but I don´t have one. Can you help me?
Hi to all,
I have exactly the same problem, TMobile said the phone is not registered in the system, but I still using my phone with TMobile this is "BS", TMobile is forcing the people to buy directly from the stores and they no want to HONOR the phones that has been purchased directly from Samsung, TMobile will loose a lost of customers if they violate the law, phones that are out of contract and has been already pay off should be unlocked under customer request