The International Cricket Council (ICC) has provisionally suspended West Indies batter Devon Thomas after charging him with seven counts under its Anti-Corruption code.
Former West Indies captain Daren Sammy will lead his country at this year's World Cup after being appointed as head coach of the white-ball teams.
West Indies held their nerve at the death with the ball and bat to beat the Proteas by seven runs in the third and deciding T20I at the Wanderers on Tuesday.
South Africa recorded the highest-ever T20 run chase when they hunted down 258 to beat the West Indies at Supersport Park in Centurion on Sunday.
Captain Rovman Powell led from the front to guide the West Indies to a three-wicket victory over the Proteas in the first T20I in Centurion on Saturday.
West Indies held their nerve against a rampant Temba Bavuma to beat the Proteas by 48 runs in the second ODI in East London on Saturday.