I can now confirm that you entered an invalid email address. The mail I sent has been returned to me with an "account does not exist" message from GMail.
KarateKid wrote
do you know if it is possible to create the same forum again with the same name and the same user I tried to create? If it is not, will there be any way nabble could delete the forum now rather than waiting? Thanks in advanced
I'm as sure as I can be that you won't be able to create an identically named forum immediately, but it should be possible once the original becomes deleted. However, that may take an unacceptably long time unless you put in a support request here, quoting the URL of the redundant forum. Having said that Free support can be a little slow at the moment.
I have never tried it, but if may well be possible to change the name of a forum immediately after you create it as its uniqueness must be, in part, determined by the "code numbers" incorporated within a new forum's URL. I can only suggest you try it.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.