The add-on you selected is for making long distance calls from within Canada to anywhere in Canada or US (with some exceptions). Global unlimited text is also from within Canada.If you want to use your phone outside of Canada, you will need a roaming...
I actually emailed support a month ago about this and they sent me instructions on how to change my email in selfserve. It is basically changing your username. I've done it a week or so ago and my profile shows my updated email.
