My rate package...

Hello, I have a question: I am confused. 🙂 If my rate plan says 2.00 a day, is that 2.00 a day no matter HOW many phones calls I make ( say for example, I make 10 phone calls in one day) is that 2.00 PER call, totalling 20.00 or 2.00 TOTAL for ALL calls? Does this make sense? Thanks!