Girls, hello! The situation is that I've been on a non-paid leave since…

Girls, hello! The situation is that I've been on a non-paid leave since March. I'm planning to go on maternity leave. My employer hasn't paid pension contributions for August and September. They say our organization was exempted from all taxes. She doesn't know what to do. She said to find out herself. Who has encountered such a situation? Will they pay me maternity benefits?