[Resolved]  HDFC Bank — credit card payment

Address: Faizabad, Uttar Pradesh, 224001

Hello,
I have hdfc credit card (And am an account holder too). Usually i pay my credit card bills before due date and everything goes fine. This time when i checked my last month’s statement, i found that even i have paid my bills, i have been charged minimum amount due on the due date. On the next day that amount was returned since i have already paid the bill.
But why would i be charged on something that has happened due to bank’s mistake? They charged me autopay refund fees and igst on that.

This is seriously unacceptable. I have tried contacting them through many channels but failed.