How to unlock a tmobile iphone four?

I bought it off ebay and i don't have a tmobile account so i can't do it via them, is there any other way to do it other than spending 90+ on getting it unlocked? Thanks

Added (1). I've called tmobile and they said that they can't do anything without the person who sold me the phone calling in and paying which probably isn't going to happen:/

Yes, call t-mobile and get them to unlock it

You must call your phone provider (either comcast, verison, digital HD, or samsung) and request them to give you the P-wod to unlock your phone. Only they can give you the permission. If the phone has multiple P-word you'll need them to print you out the list.

You can try online unlocking sites which do remote unlock for iPhone 4 locked to T-mobile such as http://www.simpleunlocking.com/apple-iphone-4/rs16wp9/. You need to provide the IMEI no., ( press *#06# on your phone to know it ) to get your iPhone 4 unlocked.

To know the instructions on how to unlock your iPhone 4 you can get at http://www.mobileunlockguide.com/apple-iphone-4.

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