[Resolved]  HDFC Bank — Illegal transaction saying excess db su

Address: 638153

Website: hdfc

I have seen a unknown transaction stating "vctf 04-03 excess db su". I called to hdfc customer care and logged a complaint asking for the reason. Complaint no:banc[protected] date 12 june 2017 as per the sms received. After a week i got another sms saying we are unable to reach you to update the status. Seeing this i called an tried to understand the reason behind the transaction. After speaking to the customer care (19 june 2017) for around more than 30 mins he explained this is automatic debit based on merchant transaction happened on 4 march 2017. Then i checked on my transaction where i had around 4 transaction on 4 march 2017. I gave him the details on my transaction and tried to understand which transaction made this. Customer support guy explained me like diverting me to saying on fuel transactions was the reason behind this. But i was using my card on the same fuel station on every week, asked about why this happened for 4 march transaction alone. Then he said it can happen on any time.
Still i dont have any solid reason for this amount deited from the account.
I am afraid o[censored]sing the debit card or any other transaction since customer care guy conveyed me, this is merchant initiated auto debit and i have to follow up on those merchant to whom and all i did transact that date.

I felt very bad on these policy where a merchant can take amount from my account after 2 months without my concern.

This looks completely ridiculous and no clear response from customer care as well. They are simply trying to say some reason which ever they guess.
If this is position for literate person then feeling very bad on illiterate who wont have any knowledge to question this as well.