Hello @PeterFA ,
According to the document Developer account fees and locations, once you select the account type and go to the next page it cannot be changed.
You can't change the account type once you make your selection, so be sure to choose the right type.
If you need to select business account type, you will need to start over with a new email address to register successfully. Also, if the added a publisher name as well you will need to change that in your current account in order to use it on the new account.
Thank you.
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