Board Thread:Friend Code Exchange/@comment-30471495-20161113142943/@comment-2.34.135.189-20161113153946

1) you already added that friend 2) the code expired (one code lasts 24 hours) 3) the code has been used (added by other people) maximum allowed number of times, which i think is four

when your code is being used up, you have to wait 24 hours until you can ask again to be added