The answer
Find your orders in your customer account. Also check messages sent to the email address used at purchase, including spam. A payment message alone does not confirm completed registration.
If a record is missing or its details are unclear, contact us with the order number and domain. Do not include your card number or account password.
What to do
Open the order in the correct customer account.
Search your inbox and spam folder for atdomain.at.
For questions about records, send support the order number and relevant billing details.