Request to remove comment of phone number

Called us twice asking for my wife. I answered on both occasions. First time asked them to ring back on Monday, which of course they did. Ask for my wife and when I inquire as to the nature of the call, they claim calling from 'her bank'. So I asked which bank and he refused to tell me as that was confidential - refused to answer so I decided to end it with "I know exactly who you are, a marketing company so f*** off!"