Nobody answers the phone. There are just recordings. When you finally get someone from EAV on the phone, they say they have no idea. So I called two of the very high end hotels in Sorrento, the Excelsior and the Syrene and spoke to the concierge, figuring they would know.
Both told me the same thing. They believe the Campania Express starts April 1st this year, instead of March 20th, as it did last year. They are not answering the phones and there is no schedule yet because they are not working until April 1st. That's the belief of the two concierges. Check back on April 1st.