BSNL — refund of deposit & advance payment of 12 month

Address:

ABHISHEK COMPLEX SHOP NO.12 M.G. ROAD, 362001

My connection no. Is[protected], i have closed connection application last year but not in-active connection till april-2019, so i have writing complain nearest bsnl office so next 1 month connection is in-active & received a copy of credit report by mail...& last month received a copy of 12 month advance payment & deposit by mail!!
But still not received in bank account or cheq