Greetings!! While there is another thread nominally on the same topic, the problem my wife and I are having with her Tesla account is slightly different. No matter what we put in the last name field when trying to add me as a secondary contact to her Tesla account, we get the "Special characters in last name are not allowed" error. There are no special characters in my last name - just 4 letters, no punctuation of any kind, in case anyone was wondering. Has anyone run into this, where anything entered into the last name field is considered a special character? If so, any fix? Thanks for any help/info you may have. VelkySyr