Thank you for the information and your question. If you are a commissioned W-2 employee, then your employer must pay you at least minimum wage for the total number of hours that you are at work. What that means is that if, in a pay period, your commissions divided by the number of hours you are at work does not come up to at least minimum wage, the employer must make up that amount in your pay.
If you are not receiving at least that minimum wage level for all hours worked and your employer will not increase your pay, you have two options to seek legal recourse. One is to file a wage complaint with the State labor department and the other is to hire an attorney to file suit. The first option is free and the second will, at least initially, cost you some money.
You didn't really ask about the 1099 issue, but although that issue is extremely complex and not something that can be determined without a lot of specific information from both parties, your employer cannot just decide to make you an independent contractor unless your situation fits within the law. You can go to the IRS page that discusses the issue, which the State DOL's and tax authorities follow as well, to read more about the law. But essentially, it comes down to control. If your employer does insist that they are going to make you a 1099, you can submit an SR-8 to the IRS for them to make a determination and also file a complaint with the State. Those agencies will make the ultimate decision. This is the link to the discussion I referred to: https://www.irs.gov/businesses/small-businesses-self-employed/independent-contractor-self-employed-or-employee
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