Hi I took your email address out of the post. For security reasons, yours and this forum's, you should NEVER EVER post your email in public (anywhere on the internet ).
As for you number if your sure you checked your spam filter and (because of your specific email host) the folder it sticks the mail in automatically after you one time click it (I've seen this happen numerous times with that particular email provider) you should contact piriform directly via the support link on the main site.
Also I don't know the word koeln. Google translate says it's Polish but translates it as "koeln" did you get the ccleaner from piriform.com?
EDITED because I didn't finish my thought (Please note: I am not an employee of piriform- I just moderate the forum voluntarily.)