Need assistance with a device unlock for a non-T-mobile subscriber


    I currently do not subscribe to T-mobile, and was wondering if it is possible to unlock a device purchased from ebay.  I called the 877 customer service number, and the representative told me my device was unlocked.  However, when booting with a non-T-mobile sim, the device prompts for an unlock code.  I am unable to try the live chat, due to not having an account.  Is there anyone in the community that could help.  Thanks.

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