If you have accidentally deleted contacts from your Yahoo account (Yahoo Mail or Yahoo Messenger), this post will help you recover and restore them.
1. Log in to your Yahoo Mail account.
2. Go to the Contacts tab.
3. Click the View drop down menu, choose Deleted Contacts.
4. Choose the contact that you want to restore on left side. Below are example of two deleted contacts. One was deleted from Yahoo Contacts, one was deleted from Yahoo Messenger.
5. To restore your deleted contacts back, click the Restore button.
6. Alternatively, you can choose and restore multiple (or all) contacts by using the check box next to the contacts and hit Restore.
7. Hit Restore button in the pop up window to confirm.