Bharat Sanchar Nigam [BSNL] — security amount did not receive after disconnection number

Address:

Udham Singh Nagar, Uttarakhand, 244713

Dear sir/madam
I used to use the bsnl landline since 2005 and my landline no is [protected].
I was disconnect this no in june 12, 2005 but the security amount doesn't receive yet.
I visited exchange so many times even i submitted a security amount refund form also but the amount did not receive yet they said to me that the security amount takes 6 months and above, then i called 1500 no for security amount inquiry and they said security amount take maximum two months
So please sir do needful as soon as possible.

My landline no-[protected]
Connection name-bhoop singh