You know the pain of that withdrawal screen. You hit the jackpot, click “cash out,” and then—crickets. Three days later, you’re still refreshing your bank account, dodging emails asking for your passport photo, a utility bill, and maybe your firstborn’s …

Picture this: a British soldier, tucked away on base, spins a virtual slot for a few bucks. Seconds later, his phone explodes—£13.2 million richer. That was 2015’s Mega Moolah madness. But hold up. These aren’t just fairy tales about lucky …