Be at least cautious about using “Ships Information” if you are cruising in Fiji.
They set up business where cruise ships dock. They are reliable enough — but charge a commission. I rented a car through them in Fiji, then walked 100 feet to the Avis office to get the car. I would have saved money by going directly to Avis.
I think they are dependable enough — but you should check around the area before using them.