Most fraud and scam victims here initiated to post in the scam accusation section. There you could tell the exact fraudulent that happened to you by providing details and proof to support your accusation. To seek fairness, providing evidence is necessary.
Yea if the company is registered somewhere then then the authorities can be informed about it, this is much easier if you contact the license provider of the gambling company they'll have a better grip on the rules and regulations of the country that gambling company is operating in and they'll threaten and you'll get what you deserve from the company otherwise they can see themselves behind the bars if proof against them is solid.