Anhiquilate reward is wrong

When I finish for the first time any anhiquilate mission, it appears "You win 30 S-bullet"

But the real reward I am getting is 20 S-bullets...

So what is wrong with this?
I got Same problem
I get all 30 when I complete one, what could be happening is you are selecting more then one reward. When you complete a mission normally you get 3 rewards before being able to open the other boxes for 5 bullets each but when you complete a annihilation mission you only get 1 reward (not 3) before opening the other boxes for 5 bullets each
Toddinator007
I get all 30 when I complete one, what could be happening is you are selecting more then one reward....
that was the key! Thanks ;)