Hi Kimberley. Public Mobile does offer service in Barrie Ontario. Was that your question? Or you are wondering if they have some sort of dealer or store outlet in your area?

Unfortunately...in recent months, Public Mobile stores have closed and the only way to get a new SIM card appears to be from their online store: publicmobile.ca/shop. If you want to activate a compatible unlocked phone on a Public Mobile plan that needs to be done online at: activate.publicmobile.ca.

Obviously shutting all your stores has gotten a few of their customers upset. See this thread on their forum.