What are possibilities for ‘additional information’ needed by TWC when applying for unemployment benefits?

Not sure if this has been answered—although i know there have been several discussions about how frustrating it is to get ahold of TWC so forgive me.

I was able to successfully apply for unemployment for myself, now I’m just waiting to request payment. On the other hand, my mom’s application needs additional information. She currently works/lives in Atlanta but filed in Texas because she only started working in Georgia in October 2019, and her base period ended September 2019 so she’d receive benefits for the wages earned prior to that here in Houston.

She hasn’t been able to get through lines at all, so her application is on hold until then. Just wondering if anyone has any idea of what this ‘additional Information’ needed could be? Is it because she no longer lives in Texas? I guess it’s hard to tell and even harder because she can’t get ahold of a rep to help. Just was curious if anyone has had to call because of additional info and got through!

877-915-6400 was the toll free # she was given to call. Wondering if there’s any other #s out there?

Thanks in advanced! Just desperately trying to help my mom from like 800 miles away 🥺