How to Restore Google Contacts
Google contacts can be restored if you accidentally delete or change them. To do this, you need to sign in to your Google account, access your contact list, select a recovery and recovery stage. You should then create a backup of your contacts just in case. Google can only restore contact data for the past 30 days, so if you wait too long after making the change, there's a chance the contacts won't be able to be restored successfully.[1] X Research Source