Ok, I did some footwork myself and made some nice contacts at SAA and here's what I found for Springbok
Sita – JNBCMSA
Telephone number - +27119783131
Fax number - +27119704387
AFTN – FAJSSAAM
HF frequencies – 8933, 5532, 17925, 21943, 13330, 11354.
If anyone wants to know!!