Bests & Worsts Reviews from Amazon

This is a T.Mobile branded phone. That is not said in the description and it is extremely relevant. Would not have purchased it had it been described as a T.Mobile unlocked phone. The problem is that 3G does not work on other networks (it's not "unlocked" if you need to use 3G network). And in some countries, like Japan or China, you can only use a BlackBerry on a 3G network. I learned this the hard way. Thanks to this misleading seller. What a horrible shopping experience. On top of it, the seller responded that I should have checked the comments from other customers before buying. Unbelievable. If the seller new it was a relevant information, why did the seller not amend it's description?