I want to remove my account.
This is not possible, because I logged in with my Google account.
To remove my account, you ask for a password.
Please remove my account.
To remove your account, please go to the Settings -> Account and before you use the "Delete account" link, please click on "Edit" in the "Password" section (in the same window) to set a password for Todoist which you can then use to confirm the account deletion.