QR Business: Johannesburg to FRA R25500 or €1600 return Q Suite
QR Business: JNB - Frankfurt €1,600 return June, July, August 2020
Some pretty decent fares in Qatar's top notch business class from South Africa during Europe summer time with the Qsuite).
Dates are available in June to August 2020
Examples with link
JNB to Doha A350 Qsuite
Doha to FRA B777 Qsuite or A380 seat