I cant get a belt from Saresh, WHY?!?

The drop rate say 50% and i did run 12 Saresh fights and 0 belts drop. Am i super unlucky or is something wrong?

The odds of losing 12 times in a row on a 50/50 bet is approximately 1 in 4,096, or about 0.0244%

Please help i don't wanna burn all my currency if i just cant drop the belt.

RNG is RNG

there isn't a bug here

So im just the unluckiest player to hit a 0.0244% chance to NOT obtain the belt? Maybe i will waste all my currency on playing the boss over and over to prove that this is just not working on my account. This is divine unluck or it is a bug! =)