I hadn't heard of that also-a-scubaboard, interesting.
You can also post a review here.
That would carry more impact than anything else. There is a problem when a person joins SB solely to post a bad report, so your friend should accept that upfront, but if we can post a good story, it will be appreciated. The Operator may be invited to answer. I had that happen to me once, which turned into his-word-my-word, but I caught a lot of flak from the Operator's many friends here. I'd still do it again, but it's not always fun. You might search SB first to see how popular the Operator is here? Only as an example, if it happen to be Cocoview on Roatan, forget it! They can do no wrong on this board and many others.
There are bad reviews of operators all the time.
Looking at your posts about the Galapagos you went in May? The board had a problem around then and lost weeks of posts sometime around May-June if I recall correctly. Perhaps you just got caught by that.
I think you're right. My other bad reviews have never had a problem.
You can certainly report them to all of the agencies that the Operator claims to be affiliated with, then place several phone calls over coming weeks to keep pressure on the investigation, as the last thing they really want to do is investigate a customer.
You can complain to the local authorities, local tourism organizations, etc. It may not matter, but sometimes feels good.
And there are other ideas, depending on the country and nature of the problem....??
Mostly, it's good to check here on the Operator in advance, but that will not guarantee anything - just a good indicator. In the end, you have to cover your own butt, stand up for whats due, and dispute charges thru your credit card company in many cases.