Mr Price Home

I was working as a casual at Mr Price home V&A ever since I started working there I have never received any payslip it's been almost two weeks I've been asking for my payslip. I have worked Overtime for more than 5 days but I never got paid for the OT that I've worked instead they said they can't pay the OT I must start an hour after my shift has started. And I have spoke to the management they playing hide n sick,and also when I started working on the first week I didn't get paid they said it's gonna be a back payment but I didn't received any back payment. I have asked for the contacts of the person who's responsible for the payments because I need clarity and I want my money.