Mulitple gun purchase question

[ChunkyMonkey]

The situation was: I had a stripped lower sent to this FFL from in state.
I was also buying a handgun from a private individual. I figured we'd do the transfer at the same FFL in order to only have one background check.
The FFL originally filled out one form for both transfers. When they called it in and told them what I was doing, they were told that they needed to do two separate transfers.
The FFL gave me two new forms to fill out and charged me an additional fee.
Of course it made no sense to me. Just passing on my personal experience.

Your 4473 has no bearing where the firearms originally comes from as both firearms are in the FFL's possession. It should be on one 4473. CBI help desk can be very confusing when it comes to 4473, as they are not ATF. Once I transferred over 200 firearms from 2 sellers on one 4473 to my name. Misinformation happens... alot.

EDIT: CBI confirmed, COLORADO requires private transfer to be separated from dealer transfer.