I wonder how legal this is. I pre-ordered lbp2 from Amazon using a gift voucher I received and the original email confirming the order has vat calculated at 17.5% This morning sat in my inbox is an email from Amazon advising me that my copy of lbp2 is winging its way, hooray. However, the price has changed to reflect the rise on VAT. It's added 4p to the price which isn't the end of the world tbh, but it's a bit strange that the amounts have changed. I know that if I have to reprint an invoice here at work and that if it's before 4/1/11, it has to have 17.5% VAT put in. It was the same when the VAT changed to 15%, I had to be careful and make sure the right vat calculation was put in depending on the date the original invoice was. So, do I have an argument I can put to Amazon about this? Is it legal what they've done?