Fongo powers free calling solutions for a number of brands. This forum includes information and tips on all of those offerings. Note that your specific services may vary based on the specific Fongo product that you're using.
Joliette has already been discussed as to it's current (and former) status. I do confirm that it UNOFFICIALLY had free calling prior to the Tariff update ...
It is hard to fix something if you are unaware that it is broken. Nor can you complain that something you WANT improved is NOT being improved if you don't at least take the time to make some suggestions.