Promotions come in many phases and if Betkin wants to even increase its number of active players and new registrations it can run a review campaign, this is the fastest way to get people to register and play one or two games on that casino.
Op already said before that they will be running a review campaign in the next few weeks. Something good for a new platform to do.
Apparently, they have been giving out promo codes on their telegram channel for new users who sign up. Free 50 spins on a specific game with no deposit. I guess that would be a good fit to pair with the review campaign they are running.