Amul / Gcmmf — Not providing the refund

Hi,

My father had open a amul milk parlour in Sanjay vihar, delhi cant-110010 ( Under army head quarter area), due to some problems we had to leave the franchise and handed over to someone else, as we were facing financial issue during covid time we weren't able to pay back the pending amount to Army head quarter, but 4 months ago we cleared everything and provided the NOC and everything but still haven't received any security money back .
One mr. Yuvraj and vikas both are not helping at all .