BB Bold :: Brand New 9900 Is Dead - Unable To Turn It On?

Purchased 4 months ago
Condition before the incident: perfect.

I always took a full care of my belongings (especially the electronics). This phone was only used by me. I never over charged it and always update it. I also never overloaded it with softwares.Today the phone just refused to turn on (no lights, vibration, nothing at all). Even when I tried charging it, the battery never gave a sign of the charging process.

I have used my phone around 3 AM, at that time I remember the phone having between 25 to 20 % of battery life, and was working fine. I went to bed and woke up around 7:30 AM, that is when I found the phone off. I then tried charging it normally because I never thought that it will never turn back on, I assumed that it ran out of battery and that it needed charging. I tried every method of recharge I was able to perform (of the wall, changed the charger, off a USB cord connected to my laptop, etc).

I luckily had a recent back up, because I updated the software then. Yet, I think its ridiculous because I have paid a lot to get this phone (I actually purchased two of them and now I am nervous that the other one will have the same fate).For now, I am using my an older phone (bold 9780) and contacted T-Mobile USA and see if they can help me, and unfortunately they did not have any clue as they claim, about this dilemma. Meanwhile, I found many people owning bold 9900 and 9930 models complaining from the same problem that I have encountered.