Before you contact anyone ... what exactly are they asking for and for what tax year ?
If you
purchased Audit Defense for your tax return, call Tax Resources, Inc. at 877-829-9695,
or report your notice on their web site at http://intuit.taxaudit.com/. Do
not contact the IRS. Let Tax Resources contact them for you.
This is the membership email you should have gotten: https://ttlc.intuit.com/questions/1901569-when-will-i-get-my-audit-defense-membership-kit
If you
did not purchase Audit Defense:
TurboTax has a special phone number for help with IRS tax letters, which will be
easier than going through regular Customer Support. At the
page below, click on the blue button that says "Get Help from TurboTax
Support". Then it will ask you what tax year is your letter. Then
it will ask you what the letter concerns. Then it will show you the phone
number during posted business hours.
https://support.turbotax.intuit.com/irs-notice/audit-support/
Also see the following link on the IRS web site
for more help.
http://www.irs.gov/Individuals/Understanding-Your-IRS-Notice-or-Letter