Jon Trott scored 71 as England won the third One Day International with South Africa at The Oval.
The tourists batted first and were 211 all out with Coventry born Ian Bell catching de Villiers and Duminy.
Bell made 12 before he was trapped lbw by former Warwickshire player Dale Steyn.
But Jon Trott came in and added 71 along with 87 from Eoin Morgan, steered England to victory which sent them to the top of the one day rankings..