Hello,

I have booked a Greek Islands pass 4 days for next august. 
My issue is that I plan to do some connections between Islands that are not possible with the ferries of the Attica Group ( for example : Santorini-Amorgos, Naxos-Sifnos, Sifnos-Santorini or Sifnos-Paros, depending on the days). Can I make free reservations with my pass for the Seajet ferry company ? 
If not, can I use the 30% discount that is supposed to be offerd for extra travel days ? 
Thank you!