Why wont my cell phone company give me an unlock code?

Question

I have a t-mobile carrier but recently bought a blackjack with an at&t logo onit when i take the att sim card out it says invalid unlock code i called t-mobile and they wont give me the code bought a $35 one from e-bay and it doesnt work whats going on?

Answer 1

If you need unlock code means you can get the unlock code here http://www.superunlockcodes.com/unlock-your-phone/rs12wp2/  to your mobile...