My personal safety is something I take VERY serious. If I were in fear of my life, I would not have stuck around to go into a bathroom. I would have called the company and had them reassign the shop to someone else, explaining that I was afraid and I could not properly complete the assignment.
If I attempted to complete the assignment, I would complete it fully or I would not expect to be paid. If I had stuck around and entered the bathroom, it couldn't have been too scary. And, once in the bathroom, why not take the required photo?
Once you get over the shock and annoyance that you have completed a shop incorrectly and are not getting paid, I hope you can take responsibility for the mistake rather than blaming the company. I'm hoping you are just posting angrily when you say "The lesson I took from this, report everything as all fine and good, so you don't have to waste your time, and get paid. Or just stay away, they seem like a scam when they find any way possible not to pay someone."
It that's really the lesson you took, you are kidding yourself. Wearing a blindfold and blaming the company for your mistake is not doing yourself any favors. Take responsibility for your mistakes and use it as a learning opportunity.