Appalled at Kulula's refund policy - they are ripping us off

I am absolutely disgusted at Kulula. Firstly, ,I did not get a confirmation email when my booking was made a few weeks ago, so I thought it was not made. Secondly, I wanted to change the flight to a flight in July, and it is working out more expensive than if I do a complete new booking. I think this is ridiculous. I should at least get half my money back, especially given that it is a week in advance.

Is this the way consumers are being ********** by airlines, because Kulula will probably get another passenger to fill my seat(and make double the amount of money for 1 seat), so it does not make sense why I shouldn’t get at least some money back.

I am absolutely appalled and irritated...this is not fair Kulula