Does anyone have any experience having Chase use the same inquiry to get multiple cards?

I have a Chase United Mileage Plus Visa that I wanted to upgrade to the "Platinum" version - I was told they cannot upgrade (something about new CC regulations - others have reported this same excuse, but I digress) and I would need to apply for the card.

So I applied last night and got an alert of the inquiry today.  I called the application status number and it said "congratulations you've been approved" (CL $10K).

Now I am also interested in the BUSINESS version of this card.  Has anyone called to apply for a second card and asked them to use the same inquiry?

Thanks!