Hard to believe that a carrier would put a subscriber through all this for a four month old device.
Any possibility you could escalate through the Bell Mobility Customer Disservice Department to get a supervisor? Sounds like you have given them enough opportunities to repair and the tech people say it is not repairable.
Remember this when it comes time to renew and react accordingly....
I feel for you....
__________________ "Criticism is something you can avoid easily by saying nothing, doing nothing, and being nothing"