Thanks! Hopefully it would have the updated collar. By the way, mine came with the Jowo nib. Can't remember where I found out, might have been sbrebrown or Brian Goulet, but the Jowo nibs have the nib size designation under the 'TWSBI' name in the middle of the nib just above where it goes into the section, whereas the old nibs had the nib designation on the left side of the nib rather than in the middle.
Oh I got the black one instead, thankfully works perfectly now.
I asked TWSBI about the metallic one, and it seems it's a coating on the black plastic. No idea if it's only aesthetic or has some functional utility.
"We changed the more recent ones, it is just a different coating instead of the black. So depending on when the last time the retailer there ordered from us, it would be different.
If the black rubs off overtime, you will see its the same underneath."