PC Mobile operates through the Bell network so transferring a phone number should be just as easy as any other provider. I would definitely recommend porting over starting with a fresh number.
@813 Are you sure it's 4 kb? Because that's not even a webpage worth of data. What troubleshooting steps have you already taken and where are you checking to see how much data you have left? Rebooting the device is usually the quickest way to reset a...