It sounds as if you are making progress now. Hooray!
Like many here, I struggled to get my insulin under Part B Medicare. Even though I now get that filled regularly, I’m not sure that I can recite the rules and restrictions.
But here are a few things that I HAVE learned that, I hope, may be of help:
In terms of percentage of prescriptions filled in any retail pharmacy, a Medicare Part B for insulin is a real rarity. As a result, there is a HIGH probability that the pharmacy tech and/or pharmacist doesn’t know how to handle this properly. When you DO find someone that knows what they are doing, try to work with that person.
Once you have a prescription in their system as Part B, refills usually are easier. I’ve had pretty good luck using the app that many pharmacies have for a refill.
Make sure that your PCP or endo knows that they absolutely have to include that the insulin is for use in a continuous insulin pump. You would think that should be an automatic … but not always. I think that there are other specific bits of information needed … but I can’t remember them all. As I recall, however, @Dave44 created a good list on this forum of all the things you may need to provide.
For reasons that I don’t fully understand, these prescriptions can’t be transferred to another pharmacy ( even in the same chain) if you move or are on an extended vacation.
Best of luck … I sincerely hope that you get to the finish line of this soon.