Can you interject (not interrupt!) with statements like, "Well, Jerry (or whoever), I *did* ask for that info in the email I sent you last week", and "I believe there's been a miscommunication; which is your area, and which is mine? I thought mine was X, and YOURS was Y" and "How can we make sure this sort of mixup doesn't occur in the future?" that sort of thing?
This kind of stuff is NO FUN. ((hug))
ETA: the info email remark made me think of Adam Sandler in The Wedding Singer, when Linda says she doesn't love him anymore, "Once again, information that would have been QUITE USEFUL to me YESTERDAY!!"