sorry to hear this has happened to you.
I'm on Medicare w/ state Medical assistance--which did pay for home infusions prior to Part D. since , I've been denied IVIG ; have been appealing for past year, unsuccessfully.

I'd hoped that my Dr, my Rep, in appeal would come up w/ something but .... hasn't. he knows Insurance Co don't want to pay for the expensive treatmts that DO help

I wish you the best in this fight. If you learn anything, ways to help in this fight, please inform & update...