Move of my domain to office 365, but stumbling in the process.

The process to move a domain to office365 is to first create a record at the webhost/dns provider, then prove theownership in admin in office365, and then point the name server to microsoft ns1.bdm.microsoftonline.com

But: the process stumled: first the name server was set to ns1.bdm.microsoftonline.com.

Now there is a catch 22: the webhost cannot do anything since the domain point at office365, and office365 is not able to verify domain ownership and I do not get the domain in my hands.

is there a way out of the mess, and where might it be?