Of course not. However, the registry provides some advantages for future orders.
No - consciously not. Our order processing works in parallel through different channels. Regardless of whether you have bought in the web shop, on Ebay or on Amazon - in the end, all of this comes together centrally. What you cannot change here is your username / email address. This serves as a key for us. If you want to change this, please contact us.
Your data here also only relate to the webshop. If you want to use a new address, just create one. The data stored here have no direct connection to your master or order data, which can definitely be described as a gain in discretion and security.