Ok thanks so much. When I search for a reservation on the app or website view/modify/cancel page with the # from UT I can find it. Otherwise, it's not linked at all. When I view it on the Budget site it says it's a Fastbreak site but our number is nowhere on it. Appreciate the guidance on where to look!
(Also realized the Budget acct is in DHs name/email address, but UT reservation itself is under my name/email address. I booked the car in his name. On Budget's search results I can see the reservation and says a confirmation was sent to my email address, not his. I'm sure that doesn't help things! lol)