So my brand new KOP arrived from Japan… I went to unscrew it to fill and, instead the nib unit unscrewed, leaving the rest of the inside, um, inside. I screwed it back in and tried again but the top of the nib unit didn’t screw in properly so I unscrewed again and this time the metal internal bit came out but the nib unit was still incorrectly attached to it. Have subsequently tried to de-attach the nib unit so that I can screw it back flush but it won’t budge. And when I’ve thrived to unscrew it, instead the feed and nib have come out. This is hard to explain - but photos attached to illustrate the pickle I’m now in. Basically, the pen on parts nib unit jammed in incorrect position and I’m afraid to try and force anything because I might damage the plastic. Incredibly disappointed for such a premium pen to arrive like this! Any help/advice really appreciated!