ICICI bank / credit card
Charges for check collection

I received a telephone call from Icici collection agency stating that my credit card payment they will be collecting their exectives without any charges. Based on their telephonic conversation. I decided to give them my check payment. After Onemonth I received my statement. In that I got Rs.100 for check collection charges.

I called ICICI customer care. But there is no use and no response this. I don't understand why ICICI have some collection agency between customer??

Finally I got cheated. Who is going to be taken action on this?

BE CAREFUL ON THE COLLECTION AGENCY.