Corporation Bank — complain for deducted amount in my account

Dear Sir,

I wish to bring to your attention that Rs 13000/- has been deduced from my father account on 5th December 2017. It came to my notice when we received message on the following day.

It was unprecedented to see Rs 13000/- missing from account when I have made no transactions and have not withdrawn the money.
Then branch told me that you had withdrawn this amount in 24th September 2017. But we had not sent withdrawn message on sms to you. And this transaction did not show in bank passbook when i updated my passbook entries.
We have sent courier as well to Bangalore address but we did not get any response.

The details are as follows:

Bank account no: [protected] (A/C Holder: Brijesh Kumar)

Branch: PitamPura New Delhi

Date of deduction of money: 5th December 2017

Amount: 13000/-

I was not given any notification of the withdrawl of the money either on the email or on the sms on 24th September 2017.
So i am attaching letter which has approved by Bank. I request you to look in the matter as early as possible and return and refund the money to me.

Thanks
Vipin Kumar
[protected]