Unfortunately although I have unchecked the box, I am still getting duplicate contacts appearing in Contacts. So for example, if I have a normal contact card for John Smith with an email address of
john.smith@me.com plus phone numbers etc, for example, if I email him then a new, duplicated, contact will appear with the only information being that email address.
Cannot understand this as there is no real reason for this.
** Update ** Aha - I think I have found the culprit. It may in fact be the fault of the iOS9 update on my phone which may have been doing it! Will monitor and update further.