Domain already added

Hi, i’ve been trying to create a new account for several months, Domain is but turns me to error message " domain is already added" I’m sure i delete the previous Addon domain and deactivated the account, also I contacted and they confirmed that the domain is not added anywhere in the platform …
just tried today and still not able to create a new account for my domain

case already opened here and closed without resolution: Domain is already added

A post was merged into an existing topic: Domain is already added