Could you please explain to me how it is possible that, after a month, I have a betting limit of 2 USD?
A low betting limit doesn't necessarily mean something is wrong with your account. Platforms like Whale.io may adjust limits based on several factors, including account verification, betting history, risk management, payment activity and internal security checks.
Simply having an account for a month doesn't automatically qualify you for higher limits. I'd suggest contacting support and asking specifically what criteria determine your betting limit and whether there's anything you can do to increase it.
Whales Support responds extremely quickly and has always been very helpful in my experience so far. So it's definitely worth a try.