Is your phone carrier blocking you from calling the free chatline, or charging you a surcharge to call us? 
We have a number they cannot block, by law.  
All VoIP based (internet) (Google, Skype, Magic Jack, etc.) phone companies block  access to all chat lines. 
Some companies charge a 1-cent per minute fee.  They keep the entire penny as a telephone surcharge. More and more companies are blocking access to chat lines as company policy.