Bad manager

Shell garage at brakpan branch My name is Sphamandla Hlatshwayo. I'm working at Shell garage from 29th July 2024 until 27 February 2025.The problem start when my colleague calls me with my nation and we were playing nothing was wrong. The manager changed the story said me I call her with her national .after she shout me and beng the table calls me with names she tells me that I'm sleeping at work when we go to the cctv to proof her lies we found the owner of the garage in the office and he look the camera and he respond and tell the manager Ellite to live this thing because she is laying. The owner left after the manager suspended me.The problem is that Ellite she want me to sleep with her so I told her you are old stop this thing they start to cut my days even if I worked. Please help me