Thanks for the advice.
I ended up calling in case it was fraud verification. It ended up being a W-9 request which I provided over the phone when they transferred me to the security team. Ended up being approved for the IHG Business Card.
For those who have been requested the W-9 by Chase, I recommend calling and see if you can provide it to them over the phone. They normally transfer you to the security team and read a disclaimer then they assess your application on the spot.
Edit: It seems like they can't expedite co-branded cards so they couldn't do it