If I buy the Nokia 6300 on the official website, is it unlocked?

I recently purchased a SLVR L7 unlocked off or ebay (bad idea) and had endless problems, most serious of which was I could not hear my calls unless I set the phone to speaker. That is unacceptable, I am in the process of returning it. However, I love the design. The silver candy bar slim phone. So I looked at the Nokia 6300 (keep in mind I am with T-Mobile prepaid) which is a beautiful phone but I'm reluctant to purchase one off of ebay again and end up with the same problem. I looked on the offical website and it is offered to buy the phone only, but it doesn't say that it is unlocked. Can anyone tell me if it is? I am in the US so I need one compatable with US carriers.

Well it's not a quadband phone, but it is a tri-band phone. It will work with GSM 900 / GSM 1800 / GSM 1900. Since t-mobile uses the GSM of 1900 it should work. So don't worry about it. Good luck!