Mandala airlines online

Sucks...Bad words but it was sucks...I try to get the ticket online, the price for the one way ticket from Jambi to Batam is Rp 297.500.10 minutes flight.. and i pay as much as if i go to Jakarta with 45 minutes flight.Plus... i thought that Mandala online system just like any other international online booking, we pay half, and pay the other half when we go.. or pay with credit cards.. its not !