The email you received mentioning the btc/mbtc bonus? after clicking activate make sure your account is in the BTC method you will see the wager progress above
If it still doesn't work, it means the problem is with the site the fastest way is to contact support only they can help you
My account is only in BTC on FJ actually, and previous bonuses were present in my Bonus tab after visiting, regardless of whether I click the link from email or not. And I actually get much faster support from Tornike here, plus it isn't a terribly urgent matter, just wanted a quick way to wager some BTC over the holiday period.
In any case, happy 2022 Tornike, FJ and all you guys!
Yeah sometimes it doesn't automatically appear, sometimes you have to click on the email to get it. I suppose that is a bit more about how they want to grow their active email campaigns a bit bigger. Sure you can send email to a billion different emails if you want to, I am sure some people online are selling "here is a list of emails from people who gamble in crypto world" if you search enough, and you can email them every single day with bonuses and promotions, or just to people like you who are already their customers.
The important thing is to learn about the "active" count, like how many people actually read that email they send. This is why sometimes you have to open it and get the pearls inside like a clam.