ICICI Bank — Credit card auto debit

Address:

Hyderabad

I have been maintaining the amount required for my auto debit of my credit card bill due anount but the amount was not deducted from my bank account and later its found that auto debit return fee is charged against it.
How could that happen. Its not correct.
I would request you to look into it and take an appropriate action on this or else you lose many loyal customers like me for sure.