They do not have support on weekends outside of the main tax season. If you look now on a Monday you should be able to get a number for the support line.
It is getting harder to use the online version IMHO, they have to prevent people from using their program and not paying. If they would get payment up front it would solve that problem and they could provide a much more usable system.
Disclaimer: Not a tax professional. Information gathered from internet links. Anything dated in June 2019 was posted in prior years and is before the 2019 limits and changes.
