May I ask you why do you use brokers if you are fully allowed to use Orbit exchange directly? AFAIK brokers are only useful for people restricted there because of their locations or other things. But maybe I don't know more specific things about such services.
It's not possible to use orbit exchange directly which is why we need to make accounts with these brokers in order to access it. This is the only way to access Orbit(Betfair alternative) as far as I know.
Besides that which betting exchange platforms using cryptocurrencies do you recommend btw?
Both Betinasia and Sportmarket are two of the best betting brokers out there though KYC is compulsory.