ICICI Bank — icici bank surcharge dt:21/12/17 mcc 5541

Address:

700091

Icici bank has charged inr 11.80/- against some so called surcharge mcc 5541 which is not clear. Called their customer care also but they didn't resolved the issue.
I have used my debit card on 18/12/2017 against purchasing fuel of amount inr 510 at a petrol pump. If they have charged me because of this than instead of giving any rebate for paying cashless they are charging me. Doesn't make any sense.