I got a limited promotional offer from Duelbits today. Based on the terms of the offer, I will receive 50 free spins on Clover Bonanza slots by wagering 100$ only. There will be no wagering requirement on the free spin winnings. Has anyone else received this limited bonus message?

All of the Duelbits reward doesnt have a wagering requirements after fulfilling the requirements to get it. I claim promotion like this before and I remember that you will receive all the profit from the free spin directly to your wallet which is instantly available to withdraw.
You still have to wager 100$ in order to get these 50 free spins. Anyways i understand that winning from these free spins will be not required to wagering in order for you to withdraw. Also doing 100$ wagering is very easy if you know how to risk your money in gambling with minimum risks.
I believe he already understood the premise that he will need to wager 100$ before he can get the free spin since he literally writes it on his post and specifically ask about the requirements of the free spins and not the procedure on how to get it.
Wagering 100$ on slot games is kinda hard too especially if the eligible slot games has a high volatility. You might end up losing more than the amount you can earn on the free spin reward if you not lucky to hit any win on wagering 100$.