Need information on Google Android Hangouts Dialer

I was able to make local phone calls free of charge, using Hangouts Dialer, until I reset my tablet to factory condition and downloaded the newer version of Hangouts Dialer, recently. This version will not place local calls without my providing a credit card number and paying a minimum of $10. The $10 is not the end of the world, but I like to give out my credit information as infrequently as possible and since I will not be placing any calls outside of North America, I don't see the necessity for this. Does anyone know if I can I downgrade to an older version to avoid having to provide credit info? Nexus 7, Version 5.0.2, Kernel 3.1.10-g6ff7a51