I am moving to a new company but don't have an email address yet.
If try to update my email address on my profile from my old work email to my personal email on the admin page i get an error as per the below as my personal email address is used as my test account.
Your email change request could not be processed because ?? is already associated with another Atlassian account.
Did you go through this link https://confluence.atlassian.com/cloudkb/change-atlassian-account-email-addresses-969508513.html
Also there are few Related Contents in the same KB which says about similar error please check them out too
Atlassian accounts are tightly bound to the email address used and cannot be used more than once. In your scenario it looks like you already have another Atlassian account on your personal email.
If the Migration route above isn't an option for you you'll need to use a different email address.
If you're personal email is a Gmail address you might be able to get away with using the alias format so if your address is email@example.com try firstname.lastname@example.org
You can setup a filter in Gmail to push messages into a folder for the time being and then when your new mail comes through hopefully you can switch over easily enough to the new work one.
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