Bundle (No change fee) ---Jet star charged me $40 pp !!!!

Be careful if you want to pay for plus bundle fare fee which is $50. I paid for this because it says No charge for date, time & name change ( Fare difference apply). I wanted to change the travelling date from one to another as they were same airfare. When I was doing this change online, error occurred and I couldn't complete the procedure. So I rang the Jetstar Customer Service and explained the web error. They charged me $40pp for CALL CENTER FEE. Now I think that Jet Star made this error deliberately......

Australia-Gold Coast
Japan-Tokyo (Narita International)