RBS Citizens Bank Account Or Service Complaint

RBS Citizens Bank account or service department,

Checking account Deposits and withdrawals New Hampshire

I deposited a check in - currency with the Citizen 's Bank - -, 2015. Instead of converting to - currency at the published Exchange rate of C $1.00 = - $0.00 on the date of conversion, the Bank gave an Exchange rate of C $1.00 = - $0.00. This amounted to a difference of more than - $1800.00 in their favor for handling this transaction. I called - other banks with whom we do business, and was told they always used the posted official daily exchange rate. Please respond with the Official FTC policy regarding this matter. Thank you. - - - - ( --, Tel. ( - ) - )