Best use of Velocity and Altitude Rewards points to get from Perth to Capetown?

We have plenty of Velocity frequent flyer points and also plenty of Westpac Altitude reward points.

We would like to redeem points for business class reward seats.

Would appreciate some help on the most savvy way to do this.

Thanks.

Use Velocity points to redeem South Africa Airways. PER-JNB. Other route on other airlines may not be as direct. You need to call to redeem SAA seats, not searchable on website.