Banking Featured FinanceCBN asks MTN to refund $8b, slams N5.7b fines on Diamond Bank, othersEditorAugust 30, 2018August 30, 2018 by EditorAugust 30, 2018August 30, 20180646 By Olamilekan FAWAS The Central Bank of Nigeria (CBN), has imposed N5.87 billion fine on four banks under its regulatory purview and also demanded they