Ljubljana bus station offers a lot.
At the ticket offices sells all bus tickets, domestic and international ones (also for Flixbus), coins for the toilet at the station, stores luggage, etc.
Information about bus departures and arrivals at the Blue phones (free of charge) and at the traffic office inside the station.
And for all visiting Postojna, Bled, Bohinj, Ljubljana and so on, tickets for the entrance to Postojna cave or Postojna cave Park, to Bled castle, for the transport with the boat to the island and entrance fee for the island, for visiting Vogel in Triglav National Park, Ljubljana castle, etc.
Snacks and drinks for your convenience also inside the bus station, opposite to ticket offices.