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A South African man has won a protracted court battle against mobile firm Vodacom in a ruling which entitles him to 5 percent of the voice-revenue generated by a popular messaging service he invented. The messaging service is called "Please call me ". It was inspired by his then girlfriend, now wife asking him to call her but she didn't want to spend money on the call. The parties have been in court over the matter since 2008. Focus on Africa's Paul Bakibinga has been speaking to Nkosana Makate the inventor. (Image: Nkosana Makate. Credit: Getty Images)