Found the site through http://www.wheresgeorge.com
. Recently made a trip to Europe and wanted to enter bills, but didn't realize I needed the short code. Darn!
Also a welcome from here.
But don't worry (don't throw away the numbers).
With the serialnumber and the value it's possible to calculate the short code.
I personally know only for a few combinations how to calculate them, but there're some here who know more.
If you PM them the number and value they can return you the short code, so you can enter the notes.
The one I'm sure off he can tell, doesn't do this anymore because of a lack of time.
There are more who can help you, but I know only two dutchspeaking users (because those are the ones I turn to myself): Balibennie and bhoeyb. Their also in other coutries, but they all speak English, so it won't be any trouble.
But to warn you: don't post the serialnumbers at the public forum. Not any user is playing this fairly and I don't think you want to have a hit with it within one day to 10 cities
. But if you PM them, you can be reassured they won't misuse the information