If his MRN information wasn't there, then I think he'd get an access denied.
Do any of these applications show the ward name when he attempts to access them? If not, then it's possible that the membership record that his account is tied to is in limo somewhere. The reason I phrase it that way is that we have heard of situations where spouses get their MRNs switched on the Temple Recommend.
I'd go into ldsaccount.lds.org and check his birth date. That's the one piece of information that comes from the membership record that the user can't edit/"correct".
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