I have a free individual account. I was trying to change the primary email address for this account from an old professional address to my updated (professional) email, as well as to link an additional private email account. I did the following:

1. Added private email account. 


2. Set new (private) email account as primary. 


3. Deleted old professional email address. 

My plan was to then link the current professional address and make it primary. However, upon trying to link it, I get the following error: 

For clarity, I still have access to my account, but the only email address associated with it is my private one. 

 Any suggestions on how to proceed would be much appreciated. 

Thank you!