You got hacked on stardoll and you were a superstar she changed the email and the pass what can you do to get the account back?

thats what happened to my sister i feel really bad for her coz mine got hacked but i got it back but now hers is hacked the person changed her email

Stardoll send u an email b4 the account is changed, just say u dnt want the email changed & change ure stardoll pass!