Location: Illinois.
Today someone requested I do a job for them. They sounded desperate and like they really needed me. They made it sound really basic and easy ("Make some beds") but it ended up being a lot more (cleaning a three story house).
I never told them I was a maid, but they thought I'd told them that. They didn't train me. They left me in this house for a few hours to clean and made it sound like I'd automatically know how, so I just did my best... Which apparently wasn't good enough.
They came back and found I wasn't capable of all they assumed. This person started yelling at me and changing the story, saying they never said things that they'd said verbatim and claiming I'd said things I hadn't. It became clear there was some mental illness.
Then they told me that not only were they not going to pay me, but that I have to pay *them* because my failure to do the job had resulted in problems for their company, none of which I'd anticipated. They said they're going to bill me. So they're taking money from me because they mismanaged their business.
How do I know if/when I've been billed, and how do I dispute it? I never signed a contract and do not "work" for their company. It was an informal trial.