I bought a US roaming addon with unlimited minutes, and 9 days left. why did I run out of minutes?

[PeterVan]

I bought a US roaming addon with unlimited minutes, and 9 days left. I'm now back in Canada. When I try to call the US, it says I have run out of minutes. Why?

[will13am]

@PeterVan , the US roaming add-on is only usable when you are in the US.  You cannot use the add-on when in Canada.