Support! It is something that must be dealt with, e.g. there is a casino out there that allows deposits from $50, but the minimum withdrawal is $1000, nothing to do, hence, what an influencer tells you is a promotion that must be reviewed in the terms and conditions of Casino you(tuber) sponsor.
at the end of the day, you are governed by the terms and conditions of the site being the player on the site. so even if you use the affiliate link of a famous influencer, it doesn't mean you are exempted not to abide their terms because it is not. that's the role of these influencers or ambassadors, to attract players as much as they can. but of course, there's no reason why you would forget their terms.
That's why I don't sign with any affiliate as I know that they won't give a help. And instead they will just get money from me as their commissions. But I have nothing against those affiliates, each and everyone of us had to side hustle.
of course, that's the main reason. to earn their commission from you. but lending help afterwards, i don't think they can. all players even their promoters need to comply with their terms. being one of the sources of passive income, affiliate link is one way to earn such income and just spread to any place that they can think of where they can attract new players.