Respected Sir/ Madam,
I would like to inform you that my name is __________ (name) and I am holding a bank account in your reputed bank having account number ____________ (account number). Respected, I have been operating this bank account for last ___________ (duration).
I write this email in order to report an erroneous transaction that took place in my bank account. Respected, on __/__/____ (date) an amount of __________ (mention amount) got debited from my bank account and this transaction was (mention error – incomplete transaction/other). The transaction number for the transaction is ___________ (mention transaction number).
It is to request you kindly look into the same and refund the amount debited. I shall be highly obliged for your kind support.
___________ (Your name),
___________ (Account number),
___________ (Contact number)