Insurance recently notified me they’re no longer covering medication

I received a notification from UHC that they’re no longer covering my levothyroxine. The message states that my TSH has been “consistently within normal range for 12 months.”

I don’t have a thyroid, as in they killed it with radioactive iodine and then had a total thyroidectomy 5 years ago. I have to take levothyroxine, and the only reason it’s in normal range is because I’m on the right dose.

When I called them yesterday they said that the decision was made based upon my lab results shared with them, so there’s nothing they can do. They didn’t care or listen to why I need to take it.

What’s the next step that I can take? I’m so nervous, I’m due for a refill soon and I’m dreading the cost out of pocket without insurance.