About the original post: I bet the insurance company was trying to say that they wanted a past statement that verifies your home address. No PO box, general delivery, or anything vague like that.
I would have shown them an ordinary statement, and if they objected, then dealt with it. But I think the probability that they would object is about 1%.
You know those people whom we see walking into traffic while manipulating their smartphones? They are now the same people writing business correspondence. Is it any wonder they don't have a grasp of the real world?