I had the same issue. Kept prompting missing "email" in "my info" section to proceed with my review and payment. After talking to customer service with no resolve I tried adding the "Max" package for $59 more on the screen before being prompted to fix my info. This actually allowed me to proceed without getting the "enter email in my info" message that ultimately blocks you from finishing your return. Seems very strange and scammy to only allow us to move forward with a higher package and payment??
