WordPress Recovery

If none of you can help me with the below, do you know how I can contact someone at WordPress? This forum stuff usually never pans out for me.
I recently created a Squarespace website for my client (her request) and after I made the site live, replacing her old site, she informed me that she could no longer access her wordpress login. She did not let me know she even had a wordpress login/blog until it was too late. I did not realize she had WordPress because her old site was created in Joomla. Squarespace does not support WordPress, but they do however have an import option. I have tried importing the content how they suggest, but it does not work. It always fails. I have contacted her old host, they cannot help. I have contacted other web designers, they also cannot help. I have contacted Sqaurespace and they really don’t know anything about WordPress, so again…no help. I need to be able to get to her wp-login page or just her wordpress. It has not been deleted so it still exists, I just need to recover the content from it. Any ideas? And I have also gone to the wordpress support>recovery tab, but my client does not have the info they request for that because someone else set up her old website.