Stupid Medicare Levy

[fat4D]

so got my group cert today, and just went through the whole etax online thingo... and with the medicare levys (i have to pay both) i owe the tax department 800bucks!

so ****ed atm i didnt go to the doctors once, im a healthy 22 yr old who has no kids, claims nothing in terms of deductions, never received a cent fro centrelink or any form of government hand out... apart from Krudds stupid hand out.

anyone have an idea where i might have gone wrong?