Is there a Gachapon trick?

This makes me wonder if there's a trick as well. I used 8 tix at Hene and still didn't get the chair, even though I have hella Set-Up space available. WTH am I doing wrong? Why!!!

nexon has deemed you unworthy to sit in the chair with mouse ears!!! they secretly laugh as "mwhahahaha"

really tho, id just go to where you can make money from gacha and just buy a chair after theyre like 15 mil each (shouldnt be that far off, ~3x mil currently in Bello)