Chances were few and far between in the first half at Royal Bafokeng Stadium and the first half ended goalless.
Dikwena came close to breaking the deadlock in the 55th minute when Benson Shilango had a header cleared off the line.
Then coach Cavin Johnson brought on Robert Ng’ambi in the and the Malawaian midfielder bagged the all-important goal in the 63rd minute.
The second leg is set to be played next weekend, with the exact date and time yet to be confirmed.
Platinum Stars: Mzimela, Mere, Mabule, Sithole, Mlilo, Zulu (Ng’ambi 46’), Msomi, Mabena, Tshabalala, Ntuli, Shilongo