I just had the pleasure of an hour and 41 minute call with GetCovered NJ! The good news is, my issue is resolved, but this is after several calls, re-submissions, etc. since my original application on November 19.
Some background and tips from my experience:
My issue, not surprisingly, was that the estimated 2026 income on my application was very different than prior income that the state had. Since I just retired this year, that was expected. First they notified me by mail that I needed to submit documentation proof for the income estimate on my application. I contacted my broker and they said no problem, we'll take care of that for you. They submitted an "attestation letter" (I didn't need to write it) confirming that no other proof of income exists, and it will be sourced from future capital gains/dividends, and these transactions have not occurred yet.
That attestation letter was rejected by GetCovered. I called GetCovered on 12/5 and had a lengthy conversation where they said an attestation letter is considered a "last resort" document and they need other proof instead like 1040, 1099, W2, SS documents, etc. I explained that none of those are applicable since I'm retired. And no proof exists for my investment income since the transactions haven't occurred yet. They said no problem, I have until Feb 17th to submit the proof. I said that doesn't help because the transactions still will not have occurred - first quarterly dividend won't be till end of March. They documented all this in "my account" including that I just retired so future income will be very different and no other proof exists. They said now the broker should re-submit the same attestation letter and it will be accepted.
So I contacted the broker and they re-submitted the same attestation on December 5. I waited till today and contacted GetCovered to see if it's been resolved and they said the 2nd submission was rejected again with the same explanation, that I need to submit other proof -1040, 1099, etc.

. After an hour of me explaining that this doesn't make sense and the rep saying it will get approved if the attestation is just re-submitted (for a 3rd time), and me asking for a supervisor and them not transferring me to a supervisor.... By the grace of God I happened to ask the right question: what do I do if it's rejected again? The rep said then I can call back and they can escalate the case. AAAAHHH the magic word is not "supervisor", it's "escalate". So I said I wanted it escalated NOW.
That did the trick. She transferred me to the escalations department. They explained that everything I was previously told was wrong! The way it works is, they need one of their "acceptable" documents, like a 1040, to be submitted first - even when you know it won't match your 2026 income estimate. Then that document will be rejected AND THEN you can submit the attestation letter and it will be accepted. She sent me a link to access my GetCovered account (previously only my broker was accessing it). She stayed with me on the phone while I setup access, then I took photos of my 2024 1040 and uploaded them to my account. She refreshed her screen and reviewed it and rejected it for not matching. Then she had me conference in my broker (she even told me how to do that on my iphone

) and she explained to him to upload the attestation letter again. He did that and she went in and accepted it and I was able to refresh my screen and see "completed".
So this all took almost 2 hours today, but was finally successful and I'm all set for 2026.
TLDR: ask GetCovered to escalate your case so you can get a person on the line who can actually resolve things. Good luck!!!!!