Rechnung

You need to ask program questions in the forum for the program you are using
To ask in the forum for your program please start at https://community.adobe.com/
Moving from Using the Community (which is about the forums) to the Account forum

Invoice help https://helpx.adobe.com/creative-cloud/help/print-receipt.html
-https://community.adobe.com/t5/account-payment-plan-discussions/locating-your-adobe-invoice/td-p/13040992