You can get your tickets for Seaspeed Ferries that you booked from Viva Travel from the following agencies:
 

PIRAEUS
Sea Speed Ferries (Box Office)
Gate E4, Port
Tel: +30 210 4100301
email : piraeus@ferrytraveller.gr

SANTORINI
Nomikos Travel
Port Athinios
Tel : +30 22860 22660 / 25032
email : info@nomikostravel.gr

SIFNOS
Podotas Group
Kamares
τηλ : +30 22840 33081 / 33973
email : podotasgroup@svr.forthent.gr

ANAFI
Roussou Travel
Port
Tel: +30 22860 61407 / 61408
email : roussoutravel@yahoo.gr

MILOS
Sea Sun Sophia
Adamantas
Tel: +30 22780 21994
email : seasunsophia@milostravel.com

THIRASIA
SANTORINI PIXIDA
Agia Eirini (Riva harbour)
email : santorinipixida@gmail.com

THESSALONIKI
ferrytraveller.gr
Port
Tel: +30 2310 500800
email: reservations@ferrytraveller.gr