I have created a community in salesforce , i have a customer community user , to be login into salesforce community as user , all i do is go to contact record and manage ,and login as customer as user , in community i have given permission for case object , when i click on go button i need to get the contact's account cases ,but am getting all cases , i have controlled OWD settings for cases to private , when i do so am only able to see the current logged user records only not all contacts account cases ,
How can i achieve this ..