I can not access the email address that my LoginTAN is sent to.
Please login to your bitcoin.de account with your username and password. On the page where usually the LoginTAN is entered you should be offered an option to change your email address.
Please note that you will have to prove the legitimacy of your request with a transfer from your verified bank account before your email address can be changed.
Should the option to change your email address not be displayed to you please contact our support directly.