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I heard a very polite employee say to a customer over the phone:

A様がおられますでしょうか?

Most people would say いらっしゃいます instead of おられます.
The use of おる here surprises me because I have been told it is 謙譲語.

Is it a mistake, or some advanced usage, or something else?

marked as duplicate by naruto, 永劫回帰, Community Nov 17 '16 at 10:16

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