Integrated Video Tutorials - domain owned by previous user account of ours

The previous user account we ran had the galaxystage.com.au domain associated with it.

Can you please remove the domain from the cancelled old user account and allow us to then add it here.

As I have a number of staging sites in separate WP installs at this domain, will they all work with the galaxystage.com.au URL registered to this plugin?

Thank you for your help!

Cheers,

Matt