I received my Tax calcuation from 2007 - 2008

they are saying that i owe around 400 as i had underpaid tax. This is the biggest pile of lies ive ever heard.

Its obvious from my Tax calculation form that the figures are wrong. it says i didnt even pay any tax for my last job. and i know for a fact that ive earned more in this current job than what it states on the form.

what do i do in this situation? i really need help here.

I have been trying to chaise around 600 off them beucase i was on a BR code for around 7 months. They were taking 90 per week off me in tax! so how the HELL can i owe them money!

i want to go to Devon and smash wee stupid tax heads