Talk:Cleaning/@comment-68.230.175.37-20130618092737/@comment-5709722-20130618101118

You can use the code only once. That's something different though.

How to add friends is described above. Click on Friends tab, click on Invite a Friend, and type in Friends' names. Check the play store and the facebook page for players names. Usually both a crowded by code spammers, pick the ones who post their names only.