Amity University Noida — Regarding security refund

Address:	Amrapali zodiac, noida sector 120
Website:	Amity university

I have completed my masters in GIS &Remote sensing from AIGIRS department, amity university noida and it's been 10 months and I did not get my security refund.
I think this is not the correct way of doing it its not a small amount it's 20k.
I hope I could get a convincing response..