A joint venture is not a merger and has nothing to do with Viva's increase in A/S or Outstanding Shares. Viva is allegedly involved in a JV with Oi2.
Merger vs Joint Venture
• A merger occurs when two firms, usually equal in size decide to continue business as a single firm rather than being owned and operate as separate entities.
• In a joint venture, the two companies will separately exist on their own, and a new separate entity may be formed for the particular division or new business venture.
This is basic corporate finance.