Hi there,
I am not sure either which one for Africa. Here in Aus, you don't need too many citations in some smaller towns, because it is not competitive. But I would say it IS important to make the citations, at least a few, before making the Google Places to give Google some trust that you are a real 'local business'.
Also, maybe make a new Google account for each local business listing you make, unless the listings are all for the same business, just in different areas of town.