wordpress.com ate my registration

hi all,
i recently tried to set up a blog at wordpress.com: i gave it my email address and named my blog and whatever else i needed to put in, and then hit submit and it just kept working and never completed. i stopped the page from loading, but now the trouble is that i didn’t get an email with my password, the page at the address i chose (https://whitenoise.wordpress.com) is blank, and i can’t re-register because it says the name is already in use. so it looks like my registration got stopped partway through. i’d really appreciate it if someone could fix this for me, or let me know what steps i need to take to fix it myself.

thanks in advance!