I dunno if anyone's interested but this user on dailymotion has uploaded all of BBAfrica 2012:
http://www.dailymotion.com/bigbrotherafrica
And this guy has most of BBAfrica 2013:
http://bbathechase.blogspot.co.uk/
I definitely need to watch the 2012 series. That one was the series that had 4 people thrown out for physical violence