Generate container image registry credentials - an account in Docker with the same email already exists as used in OpenText profile

Hello,

I have used this menu item from within my OpenText account profile page. It gave me the username (the email address configured in my OpenText account profile) and password. 
I need that to download images to apply NOM updates for K8S embedded NOM deployment.

But I already have a Docker account with the same email but different password than the one generated by this function below. Moreover Docker will use SSO to authenticate my account because this controlled by out company IT. This is not a private Docker account.

Does anyone know how Docker is gonna handle that? Does generating container registry 

So far, using generated password from this menu doesn't work when I trying do download images with downloadimages.sh script.
It says:
Contacting Registry: https://registry-1.docker.io ../[Failed]
Retrying contacting https://registry-1.docker.io. please make sure your user name, password and network/proxy configuration are correct.

When I use the email with my actual password which allows me access Docker Hub portal the output says that it is an unauthorized :access!

"Warning: Please check suite sizing documentation and make sure you have enough disk space for downloading suite images.
Continue?[Y/N]?y
Downloading image [1/13] hpeswitom/itom-ftp-server:1.4.001 ...[Unauthorized]
Downloading image [1/13] hpeswitom/itom-ftp-server:1.4.001 ...[Unauthorized]"

Best regards,

Jaroslaw Kesy