Try this link:
You can edit your email address, password, and postal address on your account details page .
If you are not already logged in with your TomTom account, log in now. If you've forgotten your password, you can click the Forgot password link on the login screen, to get a password reminder sent to your registered email address.
Or use the TomTom Assistant in the link.......
I can't conect with My drive connect while there is another account registered in the navigation.
If this is your TomTom you should know what accounts you are using......
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