I’m not an IOLA expert, but this sounds highly unusual to me. I doubt calling the attorney will get you any where, as they tend to hide behind privilege.
As I always preach, if you can’t get information you need to justify the activity and it appears suspicious, file a SAR.
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"100 victories in 100 battles isnt the most skillful. Subduing the other's military w/o battle is the most skillful." Sun-Tzu