Back then, 2019, the email address I was using to communicate with the Hertz facility in Voss was [email protected]. The proprietor's name was Stefan. He really was so helpful! At first we were going to pay a little extra to have him drop off the cars right where the bus lets NIN passengers off in Voss, but then he had the idea of saving us that money by having the bus driver let us off early, so we could walk to Hertz.
If you don't want to pay a one-way fee to drive the car to Bergen, you can of course re-trace your route to return it to Voss, and take the train to Bergen. That had been our original plan, but then we liked the idea of using our cars for the drive to Bergen, to be more in control of our time and to see new scenery instead of what we'd already seen when we'd driven up to Balestrand from Voss. We could stop for a picnic on the way to Bergen if we saw a nice place for that. (We did!) We thought we'd use the rental cars a lot when we were up in Balestrand, as there are things to do in the area that require a car, but we ended up not doing that. We found a great hike in Balestrand that we could get to by walking from our hotel . . . beautiful scenery as we hiked up and up. And Balestrand was just a really lovely little town to relax in for 2 days. (It was my favorite destination in a trip that included Stockholm, Copenhagen, Aeroskobing, Oslo, Balestrand and Bergen)