Same shape here, different drug. The thing that helped was documenting the refusal rather than re-arguing it. They refer rather than write.

My rule, after years of this: if it cannot survive being written down with the numbers attached, it is marketing.

The last ten percent of a taper takes as long as the first ninety. Nobody says so until you are in it.

You are not imagining it and you are not being difficult. Document it and take the document in.