Bharat Sanchar Nigam [BSNL] — deposit refund not received

Address:

411040

Dear team,
I have surrendered my bsnl landline due to deficiency / poor quality in service with effect from 31st aug 2017. Its 7th month running and i have still not received my deposit refund. I have made frequent visits to the bsnl office in my area but have not got any answer and have been directed to the accounts department time and again. The accounts department does not pick up phones and hence i have no answer to the status of my refund.

I have paid nearly 1100 per month for more then a year for deficient service and now running from pillar to post to get my deposit refund. I would want bsnl to now pay me back my deposit with interest for the months in delay.