<human>: Can you provide a brief rundown of the text in within 3 sentences?

My younger sister has suffered from some mental trauma since she was a child. She had a really difficult time getting through high school, but she did graduate and her grades were great. She didn't finish college. She's very bright, she just struggles sometimes.

She's 24, has never had a real job, and lives with my parents. We're trying to find her a good psychologist (we had some bad luck with some shitty ones when she was a child), and a place that will find her some employment that allows her some accommodations if she's having a bad day.

A few months ago my parents got my sister a "job" at a small consignment shop. They wanted to hire a cashier/shop helper, but couldn't afford to since they had just opened the shop and they have a kid.

My sister agrees to volunteer at the shop to gain some work experience. When she started the agreement was that my sister would receive "some money when they could afford it" and would be allowed "to choose an item or two from the shop as compensation". They've never given her any items she wanted from the shop and the only thing they've ever paid her is $10 here and there. 

Aside from all of that the couple that owns the shop is very manipulative. They tell her that it's ok that they don't pay her since "unpaid internships exist". But this wasn't ever called an internship. They're just using that to gaslight her into continuing to work for no money. If they paid her nothing, it might just be considered volunteer work, but they're paying her at random and under minimum wage. 

Can someone please help me find some legal information for the state of Indiana about unlawful employment/exploitation? My sister is good and kind and needs someone to help defend her. My parents are well meaning, but they're dealing with my father's MS and recent complete sight loss. And I live out of state which makes intervening very difficult.

Thank you for your help.
<bot>: My sister is being paid under the table and under minimum wage under the guise of a volunteer position. Need legal advice.