Vodacom Group Ltd., the African cellphone network operator majority owned by Vodafone Group,  said it would begin arbitration  after failing to resolve a dispute with the minority shareholder in its Congo operation. The shareholders failed to reach agreement  on a number of issues, including capital restructuring to support the continued growth of the business.
Vodacom Congo, which began operations in 2002, is 51% owned by Vodacom and the remainder by Congo Wireless Networks. Vodacom said its relationship with CWN remained "dysfunctional," and that it would defend a threatened legal action by CWN to force Vodacom to invest further in the Congo operation.

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Source :  Total Telecom