Hi there! 😊
There is nothing wrong with being curious!
As your Community Manager, I can assure you that there are valid winners, and you can always catch more info on this via the Utilita Energy Facebook page.
Furthermore, you can check more out here
on Utilita Rewards.
Of course, please do also reach out to the rest of the community (like you have done) to understand anyone who has won previously and their experience with Utilita Rewards!