try the following (you have to remove the spaces!)
mydealz .de /deals /ashampoo-backup-pro-15-kostenlos-statt-2399-idealo-1992208
– Klick “Zum Deal”
– Enter your (or your new/second) E-Mail address into the empty field
– and then klich the blue field at the right side [… Volversionsschlüssel …]
and than: good luck, that they will accept your address and that you get your personal key.