Rally car driver Bruce Garland was happy with the results of his prostate surgery but was left with a feeling he had been ripped off.

The costs associated with the surgery were listed to show the fees for the equipment and the surgeon, but a disclaimer said there may be other fees for assistance.

"We looked at it and said, 'Maybe at worst it's $12,000'," Mr Garland said. "It ended up being $18,000 after everyone else charged their fees as well.

"There was nothing wrong with the job, but it was just the cost of it, and we had to pay upfront."