Note Exxxx5107xxx has been entered 2 times. This is a 20 Euro note from 2015. The printer code is Exxxxx. This means that the note was printed at Oberthur (France). Users who have entered the note are:
18 Jan in Lidl Ratina. Note went to my travel fund and was used onboad Ryanair flight to Budapest. EDIT the same day: sparkling wine to lovely miss Orsi, manager of MTK Budapest football team playing on the highest level in Hungary. Now I finally found her email address in this receipt.