I am using Samsung galaxy S2 (jelly bean 4.1.2). My question is if I delete a contact from my phone that is also on what's app then while deleting that contact android shows this message:-"This contact contains information from multiple accounts. Information from read only accounts will be hidden in your contacts lists, not deleted". This means that contact is not being deleted but hidden somewhere in contacts lists. I want to know how can I recover those hidden contacts.