I've just received an email from Corel offering a Paint Shop Pro 2018 upgrade for CA$29.99. Since it's Canadian company I didn't think anything of it and did a quick currency conversion to GBP of £17.29. That seemed a bargain so I clicked the upgrade radio button in the email and it took me to their site but with a British Pound in the top right hand corner. The page offered me the upgrade at £31.99. I can switch the page to show Canadian Dollars and it reverts to the CA$29.99. I don't know if I continued with the transaction in CA$ I'd get the product but it's certainly put me off from doing so. The VAT tax difference wouldn't allow for this disparity so it looks like rip off UK as normal.