First of all
- join the FF program and get a voyager number
- find out WHO does the bookings on your companies behalf and supply that person YOUR voyager number which she/he should use everytime they book you somewhere.
If the above is not possible, FIND another job, you work for *******
If you were to wangle your way into an upgrade, I for one would be pissed seeing as I have earned my upgrades. Get into coach and thank the fact your company does not regrad you important enough to be in bus/class.
Then again, a few hundred to the girl at SAA will do no harm as the corruption is open trade. Go for it !