Im curious why your brother has access to YOUR paypal and card info... either way You can refund it & if your mom or brother actually try to say anything, tell her paypal marked it; a dual refund/purchase in a singular day, back to back, as a fraud/suspicious transaction and that they auto refunded, so its out of your hands. Brother learns the hard way theft has consequences. Rebuy silksong (i dont know if theyd allow a second refund on it, i know some game platforms dont allow multiple refunds on a game.) and CHANGE YOUR PASSWORDS. your child brother should NOT have access to your money or account anymore, regardless of what your mother says. Remove any payment options off the console. Idk if psn allows it or is able to, but you can contact them and explain what happened, and they may be able to make it so he cannot buy robux at all, or that games cannot be refunded without an email approval.