Another rehearsal failure

Today we tried to have another rehearsal, we thought that everybody was free and 2 out of the 3 of them were. It was our guitarist who had a lesson on in the afternoon at the time that worked for everyone so we decided to scrap it because we need all of them to be there to help them become more of a band. This is the second time this has happened, the people that we have got have yet had a rehearsal together, this needs to be sorted out and i am going to take control of this as Freddie isn't. What i have learnt from this is that emailing them isn't going to work so i am going to find them individually and check when they can do it and when they cant, hopefully all of them will have time during the day for a quick 15 minute rehearsal.