Bharat Sanchar Nigam [BSNL] — prepaid authorise balance deduction

Address:	231001
Website:	bsnl.co.in

Mo. [protected]
U. P east, mirzapur
2nd august 2017
My prepaid account balance has been deducted with rs. 30 around 6:30 am without any permission.
When i enquired about the same, bsnl customer care told me that a voice chat service had been activated in response to a service call made to me on the day before though i had never made any response nor instructions but ended that service call without any response.
They denied to refund the balance on my complaint which is unfair and disappointing.