Aakash Institute — Regarding the fee refund

This is to inform you.that my sister took admission in aakash institute greater noida, pcb 2 yr course . She later adopted commerce so, she backed from pcb, but now these people at aakash institute are not refunding the full amount even though my sister has not even attended any single class .
Also when we went their to get security fee back, they were not responding accurately to us .I request you to please get mw back my money.