Portfolio wont allow "connect your domain"

i get this message "This domain is already connected to an Adobe Portfolio site"

That could be true because i had a Adobe portfolio site for two years
but i did not manage to correctly upgrade my adobe CC plan and the original portfolio site was gone.
I now rebuilt the site but under a different email adress

i try to reinstate the site at my domain but it won't work because of that message.
How can i overrule this... or make Portfolio realise there is no longer a domain connected to this site???