Quit. Find a new job. Sue in small claims if your like but these people are not reliable and if you count on this income, you need to find another place to work.
We have already answered this. Quit. Sue. In the future don't work for people who don't pay you.
If you found this Answer to be helpful, please mark it as such. Remember, however, free advice is worth every penny you paid for it. This is only generalized commentary on your question. It is not to be taken as legal advice. I am a lawyer – but not your lawyer! Even "in person" interviews leave attorneys with plenty of questions – the Internet makes it crazy! Thank you Chuck Watson 217.544.6165