Jipmer — refund not made

I was informed through email that the extra amount would be refunded within 15 working days, but the refund was not made then again, i was informed that the amount would be refunded within 5 working days, still the amount was not refunded, the fee amount was deducted twice and ₹3026 was deducted from my account, kindly inform me that when would the refund be made.
They are sending a general email that your problem would be resolved but
They are not looking into the problem, no refund has been made yet.