I did a little digging and they may be wrong on calling their business as a financial institution and also they have no any certification in their website but when I look at their team members one of them, Andrey Berezin, is a real person and has confirmed his identity through a Youtube video under the channel of Raison. So for the OP I think my only recommendation for you is to show your legal information and certifications in your website to make other people believe that you are a legit business, this is also good as more people will trust you and won't have second thoughts on your services.