Well this happened yesterday
I won against fr3darctor after the tournament already ended, secured the 2nd top 5 spot and instantly had the possibility to claim 20 WBs, which i obviously didn´t. Maybe he was able to claim 55 WBs.
After I waited for a while, I claimed it.
It would be very kind of the devs to restore the 35 Wbs I missed due to the bug.