Hello! I've booked my accommodations for stay in Barcelona, Madrid, Granada and Seville. Now, i'm ready to book my mode of transportation between these cities. I'm having trouble navigating the Renfe site and prices appear to be super expensive with RailEurope (Ex. $129 for BCN-MAD). Which is the cheaper booking of the two ? I prefer refundable tickets and don't care for first class seats. On some searches I received error messages. I even tried typing in some earlier departure dates (May 11th) and received messages saying no direct connection or no window of times are available. Can anyone help? Thanks!
My departure cities and dates are
Leave Barcelona Sants Station and travel to Madrid Atocha Station on June 11th
Leave Madrid Atocha Station and travel to Granada Station on June 15th
Leave Granada Station and travel to Seville Santa Justa Station on June 17th