but they have a fairly high wager requirement of 40x which usually casinos only require 20x or 30x so it's quite difficult, especially bonuses from free credits to achieve that.
I'm quite used to it, If you have tried 8bet.io, maybe you haven't been surprised with the requirement, I think Blizz.io is not a much higher wager requirement for me. I got a bonus from promo worth $8 and it reached $400, I'm happy because maybe it's only 40x or 50x to make a withdrawal. But when I look in this page, it turns out ! 
I don't know why is so different for me, you have 3751 requirements while me only 320.
Unfortunately unlucky, it's all lose guys 
yeah I'll tell it, at first I played at the Booongo provider in several games Hodl On Win etc I played manually and calmed down with a few beats, when it reached $50 then I switched to Pragmatic Olympus bet $1 all manual profit 300 and then you're right @Strongkored I switched to Sweet Bonanza so 400. Did not reach the maximum wager, at the wrong time unfortunately it lost but it's fun.
I got 10x multiply by playing fruit party and now going reduce and back to begin, but just like you said it's fun, especially since it's free. yeah I'll tell it, at first I played at the Booongo provider in several games Hodl On Win etc I played manually and calmed down with a few beats, when it reached $50 then I switched to Pragmatic Olympus bet $1 all manual profit 300 and then you're right @Strongkored I switched to Sweet Bonanza so 400. Did not reach the maximum wager, at the wrong time unfortunately it lost but it's fun.