MaverickRazor: I am not assuming they are charging VAT at 15%, as far as I understand it they must do so under UK law in order to sell me a product.
They state that percentage themselves both in the confirmation e-mails and at checkout (see attached image). All Korell pointed out was that the value they state as VAT does not correspond with the rate they stipulate.
Namur: Yep, you're right. The VAT is 15%.
And there is a small difference between the VAT in $ they display on the receipt and the actual 15% of VAT in $, so korell is right about that one aswell.
My bad guys. Feel free to post the facepalm pics now. This round is on me.
Don't worry about it Namur. I'm good with figures, I did a maths degree. However, I don't always explain things in the easiest of ways. :P