Who should be paying my tax and NIC

Frankie1963

i am a casual worker for a playgroup, so i am a playgroup assistant with a manger who tells me what to do. I work for the same place get paid weekly cash an i know i am NOT self employed. Now do i have to do my own tax returns and NIC class 2

Help please

Frankie1963

sorry im new i thought this was a better question and in a better thread forum as its to do with employment