Colombos Delicatessen complaint: Underpaid ripping me off my checks

So basically I was working at a place called Colombo’s deli in San Francisco I’ve been working there for 7 months since I recently got part time in September I was getting my check venmoed to me no biggie since the last past two months of November and December which is my bosses boss been underpaying me most of the time I’m 100dollars short of my check .in the beginning when I first started around March they were paying us cash under the table which was very illegal in regards to cashing our checks out for us n giving it to us afterwards . My boss even initiated to me that if we don’t make enough sandwhiches we will get paid less. He overworks us constantly and doesn’t care about our health he told me he was gonna fire me the day I got sick when he had to work a shift alone. I’m still 120 dollars short from my check two weeks ago and still haven’t received my other check they owe me. ** was just paying any amount without actually looking at my pay stubs.My boss talks mess about each of his employees I was a witness there in which one situation he called one of his workers a inappropriate name After she left because she quit. Please help me resolve this issue thanks.