You people advising him to try other "casinos" or sites like stake and so on are totally missing the point.
He is looking for a betting exchange and not a bookie/casino site.
I doubt if they even checked the heading twice, from review, betting exchanges are sometimes better because of the odds are better for customers.
Betting exchanges are attractive because of this, a sport book will give you a line and you have to decide if you take it or leave it, you can also wait and see if it improves, however in a betting exchange you can take the side of the casino and lay the odds that you like and someone could accept them, so if you do really know a lot about odds and how to price certain matches you could win an advantage and even become profitable, but unfortunately there is no website fiat or crypto that is close to betfair.