I registered for myTDK but have not received an email notifying me of the completion of my temporary registration.

I forgot my password. What should I do?

I registered as a myTDK member but am unable to view members-only articles.

I have registered for email newsletter subscription but am unable to view members-only articles.

I do not know how to cancel my membership.

Please tell me how to change the email address that I have registered.