Board Thread:Wiki Discussion/@comment-74.100.24.87-20131006032510/@comment-160.109.16.52-20131006125700

They won't merge them, they will take the old account and transfer it over to the new phone, however, this will delete any progress you have made on the new phone and new account. I tried the same thing with my ipad, i wanted only 1 account and wanted to merge my ipad account with my iphone account. No dice, they said they could replace my iphone account with my ipad account but i would lose everything on my iphone account.