Dikwena managed to put behind them back-to-back Absa Premiership defeats to Bidvest Wits and Cape Town City as they booked their spot in the group stages of Africa's second tier club cup competition with a penalty shoot-out win over AS Tanda.
What made that win more memorable was the fact Stars overturned a 2-0 first-leg deficit to draw 2-2 at home and force the game to the lottery of penalties, which the Rustenburg side won 5-4 after sudden death.
And, speaking ahead of this evening's league encounter away to Rise and Shine, Ng'ambi told his club's official website: "The weekend result [against AS Tanda] gave our confidence a boost. We wanted a win after we lost two games against Bidvest Wits and Cape Town City.
"This is a win that gives a lot of confidence going forward. I think the morale is high now. We just need to stay focused and make sure that we give everything against Polokwane City."
Platinum Stars are also contesting the Nedbank Cup, where they face Golden Arrows in the quarter-finals on Saturday, and Ng'ambi admits the side need to change their focus from continental action back to domestic duties.
"It was a morale booster ahead of the Polokwane game. We wanted to make history. It was a must win for us. We wanted a win to qualify for the group stages. We are happy that we are going forward," he added.
"We have to make sure that every game that comes we get the positive results. We have a cup and a league game coming up. We have to switch focus to the league now. We need to focus on the game of Polokwane. It's a huge game. It's a must win for us to get that chance to get into the top eight."