Open "MENU" on the home screen
Click on "My Account"
then click on "Profile"
Click in any field to edit or delete the data entered during registration (except for the registration email, which is linked to the functionality of your user account)
Click on „Save“
To completely delete your user account, scroll to the bottom of the screen and click "Delete my account"
Confirm your choice
Similar to the above, data entered can be edited or deleted in the section: