Regarding this issue as we have mentioned to you, the heroes consumed will be brought back after the next maintenance.
Not every "hacker" story can be legitimized and we have to look at every situation cautiously, since it can vary and there are also a lot of players that scam their way to get what they want then cry Wolf when they don't... Either way the team will work with you and sort it out but please be patient with the outcome since we must first investigate the situation carefully.
First and foremost, players need to protect their own account. We urge everyone to not click or download any links or programs/apps that maybe suspicious and ask for email log-in or passwords especially using the email accounts linked with you CC account. This would be the best way to avoid this king of situations from happening.
If you do however insist on refund, please send us a ticket or contact Live Support.