Karcher parts, where to buy.

My old karcher washer is starting to leak oil.

I need three Grooved ring rubber washers and a rubber seal. I thought I was onto a winner with espares.ie, the price was €12+€7for postage which is a rip off, but bought them anyway, weeks later I find a email from an post in my junk mail, wanting another €10+ for custom duties etc. I said no, send it back.

So does anyone know where I can get these parts.