I have a iphone 3 and am running Mountain Lion and foolishly turned on icloud. Reading communities it appears that there are some real issues with this.
I also have an ipad 3.
As you can see I have muliple duplicates but running through the solutions on this website. Contacts can no longer find duplicates but they are there both for cards and groups.
I have also tried turning the cloud off an starting again. I am happy to rebuild the contacts but I would like to avoid having to do a full manual rebuild?!
I feel like the I have unleashed an ever growing contact list?!
That command finds duplicates in the same account, you have at least 2 (iCloud and On My Mac) look at them one at a time.
Retrieving data ...