Koyasan World Heritage Ticket (3080 yen)

Hi, We will be traveling from Shin Osaka station to Koyasan on 07 November 2023, and we will be getting the 2x round-trips of Koyasan World Heritage Tickets (3080 yen) from Namba station. I have a few questions as follows:

1. Does the Koyasan World Heritage Ticket (3080 yen) include the return trip from Koyasan back to Osaka - Shiin Osaka Station? Do we have to pay extra for that?

2. Where is the exact location to purchase these tickets from the Nankai Namba station?

3. Can we book the tickets (Back & Fort) in advance?

4. Could you please advise the best seats from the Namba Sation at the Nankai-Koya Line Express towards Hashimoto and Nankai-Koya Line Local towards Gokurakubashi?

5. Do we need to change the train at Hashimoto station to Gokurakubashi?

Best and Many Thanks!
Caandice

the price has changed on Oct. 1, 2023.
there are no tickets which contains two (a round trip) seat reservations.
you can buy either one, one way reservation (one way of limited express) or no reservation (regular express).
to reserve the seat, you need to take limited express. but it runs once per hour or once per 2 hours. regular express (no additional fee) runs more frequently, twice or more per hour.
your price 3080 yen is the old price of no reservation ticket.
do you still want to have seat reservations ?
for example, from 10:00AM to 12:AM(noon), only one limited express train. 5 regular express trains. your travel will be restricted, if you choose seat reservation.