Hoping to get approval for T Slim for daughter

I’m changing for a couple of reasons. My insulin needs have been changing and using about 140u a day now. Going from a 200u reservoir to a 300u will be a huge improvement. Also I had a pump failure which resulted in my a1c skyrocketing…with all my changes recently I thought the problem was me, not the pump. That combined with a nightmare getting supplies recently(animas didn’t bother to inform me that they didn’t accept my insurance any longer. I called two weeks later to see where my stuff was to be told that they can’t help me.) made me see if my new insurance would swap early. My Endo was totally behind this for the 300u, so I think her assistance really made it happen. Training this Thursday.