Symptoms
I need to change a name/address in my invoice for the purchase of Parallels Desktop for Mac.
Resolution
An invoice is generated at the moment an order is placed.
As soon as the order is completed, no details in the generated invoice can be edited.
If you made a mistake in the purchase information, or missed some important details that should appear in the invoice (company name, VAT ID, etc.), you will have to place a new order.