India Post — money not credited since last 2 years

Address: 380050

I deposited 3 cheques into sb account of indian post in december 2015, that cleared after 2 days. But till date not credited into my post account. Even i have proof of bank that cheque cleared in which account. After 6 months post will found that that time post system was upgrading to finacle (Post accounting system like bank) program so that is that money is forgot to migrate to your account. Thay suggested to go gpo of city and make complain i made 7 complain till date to all office in gpo, ssp and sub posts but they blaming each other that this department will do it. I am still running between those. And my amount was huge.. Please do something because its 2 years now