If you have made an error, such as in providing your billing address, it can usually be corrected easily.
Retrieve Invoice
Please open this link (https://ggnfld.com/rechnung) and enter your order details.
Click on “Find Order”, you will be taken to your order confirmation page.
Click on “Show Invoices”.
Your invoice(s) will appear in a list.
Now enter your corrected billing details (address, if applicable, company and VAT ID).
Click on “Save and Show Invoice”.