Good day! Girls from Kazakhstan, help ? Last chance to open a sick lea…

Good day! Girls from Kazakhstan, help ? Last chance to open a sick leave certificate for maternity leave as self-employed. Who opens it like this and received maternity leave, what documents need to be provided at the polyclinic? Called on 1411, they said that no documents are needed, but in the polyclinic they ask for some income statements and tax payments ??‍♀️ And they say that an official position and place of work is necessary... Like they can't write "self-employed" on the sick leave in these places