Here's the link about in regarding with monthly bonus.
https://stake.com/blog/how-do-monthly-bonuses-workSomehow it hasn't been state on what would be the expiry of said coupon link.
So i do agree on the suggestion about asking it on support to make out some clarifications.
The article doesn't explain the coupon's active period but I've asked the support also didn't get a complete answer
All coupons have the expiration period, and it's the same with the monthly bonusLike I said we can try it ourselves a notification will appear that it has expired or has been claimed
The thing is that none of us want to miss the monthly bonus
