I checked your account and see you deactivated it yourself.
When you clicked the deactivation button, you were presented with a warning saying that the domains on the account would be locked there and could not be used on any other account. Seeing how the domains are still there and the account is deactivated, it means you proceeded with the deactivation anyways.
And guess what: your domains are locked to the account now.
Fixing this is simple: just reactivate the account, go into the control panel and delete the domains from there. You can then immediately use the domains with other providers on the same platform. You can even deactivate the account again, if you want.
And next time, if you get presented with a red danger popup, please carefully read it so you know the consequences of your actions.