My advice is to contact support! :) Here is the website you use to contact them. At the bottom of the page it states that they only offer support via this method, so I would try it first.
You can try sending them an email via the form at the following link:
Unfortunately phone numbers and other contact information for this product/company do not exist or are not available online.
A long shot option may be to call "Directory Assistance" or "411" for the company name "Audials AG"
Please don't forget to rate and accept! :)