i have been using freecall today and it was working fine. i was just calling like my house and cell. now all of a sudden it says i need to buy credits. i thought it was free? im in the US and im not even calling out of my area code. i deleted the free call program off my computer do i need it on there? please help thanks. if there is no way of getting around this without paying then whats a free service i could use?