Most of them send the information multiple times just to be sure that they are sent, and others can't access their accounts at all.
310,000 person receive letters from Centers for Medicare and Medicaid Services asking them to secure a proof of their citizenship or immigration status by September 5 or their insurance will be canceled at the end of the month. Aaron Albright of CMS said the letters were sent to consumers who have no citizenship or immigration documentation with the government. However, agents said that most of the immigrants that they have assisted has already sent the documents during enrollment.
If you are having problems with Healthcare.gov call (800) 318-2596.