The only thing I can think of is to file a court case in the US. Not sure on how to go about it, or on what basis you can do it on, but that's what I would do i

The only thing I can think of is to file a court case in the US. Not sure on how to go about it, or on what basis you can do it on, but that's what I would do if I had no other options. The sooner you do this the more likely they'll have backups they can restore. Of course you'll need to find a way to get to the US first (or find e.g. a lawyer to do this on your behalf), so best of luck.