peugeot 206 tax!!

Hi guys just purchased a cheap 02 Peugeot 206 1.4 look model cheap runaround just gone to post office to tax it they want £265!! it says on the log book co is 199mg when i put it into tax calculator on line using the model year engine size etc it says it produces 152mg which would bring the price down to about right. Spoke to dvla who have advised me to speak to peugeot. I want to make you guys aware so your not stuck like me.

any ideas??