I have 7 or so employees on my business card. Over the years I have had perhaps 20 different, with 8 maximum at one time on the card.
I had one employee get denied like that... He seemed to know the issue but didn't want to share... mentioned he has "really bad" credit. It was a pain in the @ss getting him to travel etc.
It didn't make sense to me as I'm paying the bill... but a few calls into customer service were a waste of time.
It was clearly not me, it was him