On Tuesday, I went out to eat with couple friends and left my phone at the restaurant. Since, I don't use my phone very often, it took me about eight hours to realize that my phone was missing. I thought it was probably somewhere around my house and on silent mode, so I decided to wait for another day. A few days later, I finally decided to call T-Mobile, I learned that someone had made international calls to Indonesia in the past three days ($500). I asked if T-Mobile could pain away some of the charges for me, but since it's not in their network, so they refused to do it (this is bullshit).
I guess it's a lesson learned, when you lose your phone, track all previous calls right away since T-Mobile keeps track of all your calls online and the records are relatively up to date.