If you choose to close your myTU account, you can do it by going into the Settings page. Press "Accounts" and at the bottom of the screen you will see the "I want to close account" button.
After reading through the final terms, please press continue and confirm it with your secure pattern. Your account will be firstly locked and our team will finalize the process.
We are definitely sorry to see you go, but if we cannot change your mind, please contact us at firstname.lastname@example.org so our customer support team could assist you in the process.