BSNL — Landline surrender refund yet to receive

Address:

56008

I surrendered my land line number[protected]Indiranagar Telephone exchange, Bangalore) on 27th Oct. I gave the cancelled cheque also so that they can deposit in the account. I was told by the account officer that no communication will be sent, no need to follow. But even after 8 weeks have not got the amount deposited. Please look into this.