Hello guys

I am somewhat confused and hope, someone can explain this to me.
The level roulette rewards - after the daily - give for me about 45900 exp, 9300 gil and 2604 company seals. So far, so good.
I've ran this roulette now around 5 times for the seals.
The last one was against Niddi, Sohm Al I guess? and all I got was "A bonus of 32,000 experience points and 6,000 gil has been awarded for swift first-time completion of duty objectives." - but no seals. At all.

Can someone explain this to me? Do you only get seals for a random instance under 50 or whot .__.?