Support does not have a direct email address. The support website is the best way to contact them.
The 2018 software still is not fully operational for completing a 2018 tax return so there will be several updates between now and the end of January.
Any operational type bugs you can report either directly to TT support or here. Any problems noted on this user community forum can be forwarded to the TurboTax Moderators of the forum by any user with SuperUser status.
Most answers provided on this forum before the start of tax season is almost 100% from other users. TT Moderators or other TT employees will from time-to-time answer questions here.
After tax season starts there will be a dedicated group of TT employees answering questions on this forum along with other users.
