The address is already in use by a staged user

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#1

When I tried to change my email address from my personal address to work email address, this error appeared:

There was an error changing your email address. The address is already in use by a staged user.

Is there any way to merge these accounts?

#2

Ah, I found the solution in https://forums.swift.org/faq (Consolidating multiple accounts)
Thanks!