Several users have reported an issue in which their contact lists appear to be duplicated on their iOS devices after configuring iCloud.
How to Fix:
First check icloud.com/contacts to confirm that your contacts on iCloud are NOT duplicated. Then, tap Settings: iCloud and turn Contacts off. You will be prompted with a message saying, “What would you like to do with the previously synced iCloud contacts on your iPhone?” Choose: “Delete from My iPhone” OR “Delete from my iPad” then exit the settings area. Wait a few seconds and turn back on Contacts by tapping Settings > iCloud.
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