Tmobile handset upgrade

I am using Tmobile handset from last two years handset keys are almost worn out. I've become used to getting a free phone every two years. Now i want to upgrade Tmobile handset ? How to do that ?

Thanks

Tmobile already announced that it has eliminated the $18 handset upgrade fee for its customers. It applies to all cell phones and smartphones offered by carrier, including T-Mobile G1, and doesn't matter whether you're upgrading your handset in stores or online.

T-Mobile is eliminating the $18 fee it charges customers to upgrade to a new phone. T-Mobile came to their senses here—penalizing a customer for upgrading is ridiculous.