Toscana del Gusto

At booking you pay a deposit or the full amount, depending on the date; the departure is confirmed once the minimum group size is reached, and you are notified in your account.

Yes, according to the terms on the listing: the penalty depends on how many days remain before departure. The request is submitted from your account, in the Requests section.

The rate states what it does and does not cover in the dedicated section; where flights are not included, you can request a quote from the Flights & Mobility catalog.