Being on Hold for a Commercial

So when casting calls you and tells you that you are ON HOLD for a project, it means to keep said dates open because you are being considered for the role and if you book it those will be the shooting dates. I have been ON HOLD for this diabetes commercial for about a month now. I don't think that is normal in the on hold world but the client is going back and forth with what they want, where they are shooting and when they are shooting. Neverless it is exciting to possibly be shooting a commercial in the next month or so. I try and forget about it and just wait for that call or email that says you are off hold you are now booked for the commercial. I stay prayed up and we shall see.