Rather than fuss with the stamps, here in the U.S., our United States Postal Service (USPS) has a excellent web site wherein I can log on (after setting up a simple account) , check postage (plus alternates, such as Priority Mail) and print the lable right off the computer. Actually, on many packages (I ship a lot to Europe, Australia and the U.K.) I save about 25 cents due to the discount. The postal service will pick it up at our mailbox for free, plus on packages I get a tracking number to see where and when it's handled. I'd think your postal service would have something similar...