Takeda Saving Program price increase after first month

Hey y’all, after two years of wrangling with insurance I finally got them to accept a PA which as I understood was necessary for the Savings Program to function.

My first month was a little over 80 dollars, steep but worth it. Today I went in to pick up my second month and it was 400 dollars.

I’m looking for any insight or experience as to why that might be. I didn’t change anything during that month. I don’t understand why it costs five times as much.