Money Woes!

Got paid today - got paid £183 which is crap cos I worked 3 days - 1 full day and 2 half days so it all added up to £250 (or similar) and I worked it out and they took out a whole half days worth of tax, so pretty much I just worked for 1 and a half days and the other day was just tax. How crap is that?! So yeah, money situation is scary!