South African Airways raises mileage award levels

Tell me, how does the SAA mileage award level for a trip from Joburg to London return jump from 60,000 miles required to 105,000 miles required in one day ? The Voyager people tell me you don't post the mileage required anymore you wait until we book a flight and then you tell us if we have enough miles ? Say Whaaaa ? Are you guys going bankrupt...or should I say did the government squander all the money they've been giving you every year...?..from 110,00 to America to 150,000. Isn't this ***** ?