I was awarded 500 International minutes. My account says I have 387 minutes left. I never, ever made any international calls! I cannot find any usage charts or evidence that I made the calls from my number. Otherwise your service is great!
If your regular plan only has limited number of calling minutes...those International calling add-on minutes will get used if you run outta regular plan minutes.
My suggestion is to either upgrade to $25 plan with Unlimited Canada calling OR get a $5 / 500 minutes of Canada wide calling add-on to supplement your limited calling plan...instead of using up your gifted international calling time.