For context, I logged my cousin into my UK mobile reward app so he can use the cinema ticket that I wasn't using. This was about 9 months ago.
I've now discovered he's been using the app weekly for free snacks. Also, he entered a competition using the app and won a prize. When it prompted for name and email, he entered his own details.
When they emailed him 2 days later, he told me how HE won a prize. The prize is an expensive coffee machine worth £800 and a fridge worth £700.
What should I do with the gifts and who actually won them? I am the account holder and mobile phone user, my cousin played a game that I probably wouldn't have played anyway.
Who should get the prizes?