They don't need more information, so no notice is sent.
They just have to read the statements attached to the return and clear the hold. But they don't have enough people to go through them, and obviously they are not processing in the order received and people who brave the phone lines can get bumped forward. In my case, I think it is doubtful anyone would pick up the return case on their own after 13 months if I didn't contact them.
