devforum.roblox.com doesn’t support accounts being associated with more than one email, and will direct you to a page which will give you the option to re-link your account. Upon attempting to re-link, you will be told to contact an administrator.
Easy solution to this is removing any other accounts which may be associated with your primary’s email from the address.
Sorry if this has been posted somewhere (couldn’t find it using search), but this may be helpful to others in the future.
Yes, I know. Thing is if you look up that other thread, you will find a better solution than removing an account from email.
Here is the thread, which replies may be helpful: