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My question is: How much do I need to lose to get a bonus or free spins?
Roobet is a joke, calling USD roollions tilt me even more.
I am not sure which promotion bonus that you want to claim but free bonus spins are awareded according to your wagered amount on Roobet so as long as you meet the wager criteria you will be rewarded.
For example: the Halloween daily mission
You will be rewarded with 20 free bonus spins if you wagered $1000 on that particular day then the bonus will be credited to your account immediately.