Insurance bounced my CGM prescription

It’s the same thing they keep saying - my policy specifically states CGMs are covered through the pharmacy coverage, but when we try to send it through them, they either come back saying we haven’t met a $4k deductible (I don’t know where they’re getting that number), so we would have to pay for the entire thing, or that it has to be obtained through my medical insurance under DME. I haven’t even had the mental energy to deal with that on top of everything else I have going on right now, so that’s all I know at this point.
@Sam, I was diagnosed pre-pregnancy, so LADA is what was originally in my chart.