New to me OP-1 with some physical issues

Hey y’all!

Just bought my first OP-1 last week, and the seller failed to mention that the high E key is broken in a way that it won’t click back into place.
Another issue I’m having is that something seems to be stuck beneath the arrow keys which prohibits full actuation. I’ve removed them to find nothing awry, but can hear something rattling about if I shake the device, and sometimes that solves the issue.

I’ve contacted TE support, but they are as slow as my usernamesake, so I thought I’d hit up the forums for advice.

Anyway, hej!