Should not have received 1099 NEC

As a bartender of a restaurant I have learned they lumped under their 501(c)3, my ex employer put part of my wages on a w2 and part on a 1099 NEC that I should NOT have received! I am not an independent contractor. Nor did I receive any income that was not wages or tips. I was a W-2 employee the entire time I worked there. I never received a bonus, etc that would constitute a 1099 in any way, shape, or form. I think they are again trying to get out of paying taxes on their end. They have a history of not paying for overtime hours and withholding tips from servers and bartenders. How do I resolve this and file my taxes if the ex employer won’t return my calls?