Over 300,000 immigrants are in jeopardy of losing their ObamaCare health insurance this month.

According to The Associated Press, immigrants must submit proof that they are legal residents of the U.S. by Friday in order to keep the insurance they purchased through President Barack Obama's Affordable Care Act. If they fail to do so, their coverage will end on Sept. 30.

The government notified immigrants with letters in both English and Spanish last month, but still 239,000 people have not complied with the request, U.S. Health and Human Services revealed Tuesday, and are getting final notices.

According to immigrant advocates, language barriers and computer glitches are to blame.

Advocates say that the letters were not sent in enough languages to serve the country's diverse immigrant community.

According to Amy Jones, who works for the Southeast Asian Mutual Assistance Associations Coalition Inc. in Philadelphia, there is a sentence at the bottom of the letters advising immigrants to call a phone number if they want the letter translated.

"People do not know what they say or that they're important," she said. "Many have been putting them aside or throwing them away."

Jones' agency assisted 450 immigrants in obtaining health care and is calling participants to ensure that they are filing their documents.

Advocates also say that many filed their paperwork via mail or computer, but it was "lost or not processed," according to AP.

Vicki Tucci, a Legal Aid in West Palm Beach attorney, said that fewer than 20 people have contacted her about the letter, compared to thousands that contacted her during the enrollment period. Some people thought it was a scam, Tucci said. Meanwhile, others claim to have already sent in their documents at an earlier date, sometimes more than once.

According to federal health officials, some immigrants who already sent in their documents keep getting the notice because their papers are still being processed. Another issue arises when data on HealthCare.gov doesn't match up with data of government agencies such as the Department of Homeland Security, which is known to make errors, especially in regard to naturalized citizens.

About 8 million Americans signed up for health insurance through the Affordable Care Act. Around 1 million are immigrants and were asked to send in proof of residence. Documents from almost 700,000 immigrants have already been verified.

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