Cant update my email as my username has characters that are not allowed?

$nake_eye$ Forumite Posts: 406
Part of the Furniture 100 Posts Photogenic Combo Breaker
hi, my account is super old and i set my username in the early days when special characters were allowed ($). The email address i use on this forum is also very old and i would like to update to my current email, but i get an error message that my username is not allowed but also doesnt allow my to edit my username 


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