Mike Cameron has been a trucker in his home state of Minnesota for 25 years. His girlfriend, Tamra, recently recovered from a bout of lung cancer—so, when Mike won a free cruise with Norweigan Cruise Line to the Bahamas, the two were excited to celebrate their recent medical victory.

The ship left port in early January, and Mike had a great time. However, a few days into the cruise, Cameron started to feel unwell. He sought treatment with the ship’s medical center, which diagnosed him with the flu.

“When I first went in, there was no doubt that I definitely needed some help,” Cameron told CBS. Medical personnel on the ship gave him some oxygen and held him in the ward for 62 hours. He began feeling better but felt nervous about the medical bill.

The woman who treated him said the traveler’s insurance he bought before the trip was solid, and that he’d be covered.

“I was reassured by their medical secretary that I had nothing to worry about because I had Travelers Insurance,” he said. “She said, ‘I already looked into it. You’ve got $20,000 worth of coverage. You’ll be fine.'”

However, the cruise ship employees were sadly mistaken

Cameron was nervous but felt a little better. The bill he was presented with as he went to leave the medical ward nearly took his breath away: $47,000 for his overnight stay and the oxygen.

“I couldn’t believe it, to be honest. I still can’t believe it,” said Cameron. He tried to contest it with the cruise line, who directed him to go through his primary insurance. However, he was told his insurance doesn’t cover medical expenses outside of the U.S.

“As of right now, we have no idea if anything’s going to cover it. We don’t know,” Cameron said. His daughter set up a GoFundMe to collect donations for the bill. For now, he’s encouraging others to check with their primary insurance and traveler’s insurance before getting on a cruise ship.

“If you’re going to another country, you might want to check all this stuff out, your Travelers Insurance, your primary insurance. You just never know,” he continued.

The cruise line wrote in a statement that Cameron “received appropriate treatment,” and that his charges were reviewed and approved by their team.

Viewers were shocked by the medical costs

Comments on the outlet’s YouTube video of Cameron’s story were empathetic to his cause. Some even said it inspired them to steer clear of the company.

“That’s ridiculous! Norwegian Cruise Lines should be investigated for this total rip-off at sea. I’ll sure think twice before I cruise with them!” wrote a viewer.

Another noted that even if he’d had traveler’s insurance coverage, he’d still have to pay $27,000.

“This is outrageous,” they wrote. “What a scam.”

Someone else wrote a fear of medical bills inspired a family member to take a dangerous risk.

“My brother had an epileptic seizure on a cruise and his wife just took care of him in the room because of fear of this,” they wrote.