Although very understanding of gender discrimination, Africans tend to direct conversation and decision making questions to their male counter-parts, so although it can be a tad frustrating if you are a female business unit leader and are being ignored, attempt to politely re-explain roles and re-direct the meeting towards the person who is actually the senior team member regardless of gender. Things in Africa do tend to run at a slightly slower pace than we in the West maybe used to, but just accept that this is the way things are done here. The worst thing you can do is become negative about this, many Africans will perceive this as rudeness and impatience, so just smile and remain polite, things will happen!!