Are you allowed to promote gambling sites on YouTube? CS2 cases gambling sites.

I do videos on YouTube on reviewing softwares and tech gadgets, recently I've uploaded a few cs2 videos and and sponsor reached out it's a case opening sites. Anything I need to take note of to ensure it adhere to the rule of YouTube? Anything to declare? Hopefully someone who had done promoting gambling sites before can tell me what to do? Like setting video age limit etc?