IBS Hyderabad - Non Refund of Semister Fee

My daughter withdrawn from IBS Kolkata PGPM program, The admin at Kolkata assured us they will refund **% of my paid semester fee (Excluding Non refundable Admission fee of Rs. *****). We have paid total * semester fee (******/ each), However they only refunded **% of *st Sem fee. The *nd semester fee they have completely eaten. Their Kolkata faculty keep on assuring but at end they thrown the entire responsibility to Head office IBS Hyderabad. We have been following up with Kolkata center since October ** but they keep on misguiding us and ultimately trying to make money with our hard earned money. Kindly look into matter for refunding of my *nd semester fee. Attaching the refund letter issued by them stating that refund of *st semester fee. No other refund given by them. Kolkata center is not responding. Please help us for refund.