Central Bank of Kenya Governor Patrick Njoroge makes a point during a media briefing at the CBK headquarters in Nairobi yesterday. PHOTO | DIANA NGILA | NATION MEDIA GROUP ByGEORGE NGIGI, gngigi@ke.nationmedia.comPosted Thursday, September 22 2016at 09:45 The Central Bank of Kenya yesterday warned commercial banks against introducing new or increasing existing transaction fees without its…