Can a Z10 IMEI be changed? (more info in post)

Please note I am not asking for anyone to teach me how to do it if possible, nor am I looking for any particular service to do it, I’m simply asking the basic question:

Can the IMEI of a BlackBerry Z10 be changed?

I know that BlackBerry devices are not "typical" smartphones and because of most of the security features things are more difficult but potentially possible – I have a Z10 that someone else reported as stolen – seriously, I bought it from T-Mobile 2 years ago as a clearance item and at some point in the past few weeks someone reported MY IMEI of MY phone as stolen and even though I’ve taken my Z10 into a T-Mobile store twice now so they can see the physical phone in person and verify all the necessary info including my actual purchase which is still on my T-Mobile account information they simply refuse to remove the device from their stolen devices blacklist.

I’m really pissed about this because I love my Z10 to death, and if there’s any way I can resolve this and make it functional on T-Mobile again I’d love to find out how to accomplish it. I’ve done a lot of research, read all sorts of posts and threads about BlackBerry devices but I just can’t seem to get a straight answer on that question I posted above.

I know the BlackBerry PIN is tied to the IMEI so I’m guessing that’s part of why it might not be possible but I still have to ask the question:

Is it possible to change the IMEI of my Z10, ever?

Sorry if I’m asking a stupid question but I really hate to lose the use of my device just because someone else screwed up and reported the wrong IMEI number to T-Mobile (which appears to be the case, the person who reported it stolen doesn’t even live in the US it seems).

If it’s dead and I can’t do anything so be it, but I’d like to know either way.

Thanks for any info.