Random DP.
Stayed last week at the Wave Hotel in deal NJ. Used an amex card to prepay for the night. And then when coming in, they asked for a card to charge for incidentals, so I pulled out my venture x knowing it's not going to be charged, just for incidental.
Fast forward a few days and I see an email from C1 that says thanks for using your $200 credit. I had no clue why I got that email. But it seems they charged my venture X vs my original card and it triggered the $200 air bnb or vrbo credit.
Unless they have a lot of rooms and the like on the above platforms which essentially makes it as an abnb charge.
Thought I might share in case it's useful for someone.