Chiefs will face the ABC Motsepe League Mpumalanga stream champions - who beat Absa Premiership leaders Cape Town City in the cup - at Kabokweni Stadium on Sunday (15h00).
"We are going to approach the game like any other game. We are not gonna undermine them," says Cardoso.
"Even though they are Vodacom League, we are gonna take the game as if it's an Ajax or a Mamelodi Sundowns team. We are not going to underestimate them because they did beat Cape Town City and Cape Town City are flying this season."
Amakhosi, who are third in the topflight standings with eight matches left, enter the contest with confidence after defeating Sundowns 2-1 in the league on the weekend.