Having spent ten minutes trying to figure out the recurrent PayPal error message when paying for an auction on eBay.de - when adding the postage don't put it in the format 1.50 as the correct format is 1,50 (see that comma?) otherwise it won't understand what you are trying to do....mind you, being allowed to use PayPal in France / Germany etc. is a bit of a rarity.
Original Post