State Bank Of India [SBI] — Erroneous debit

Address: Kolkata, West Bengal

An amount of Rs 452.67 is debited to my s/b a/c no. [protected] on[protected] for reason not known to me. When enquired to my home branch (Baguiati Branch, kolkata), it was told that the amount probably represents demat charge. So far my knowledge goes no such amount is supposed to be debited to my account. In view of above, please look into the matter and set right my account.