Boag said her recollection of events was that it was the ACC staff member who suggested an arrangement could be reached in Pullar's case.
"In the meeting he said if we agree on this as a way forward, a condition would have to be that you return the information."
Boag said the staff member made the suggestion after she and Pullar urged an investigation of the privacy breach "for the sake of your ministry, your board, your CEO".
Boag said it was one of 45 privacy breaches of varying degrees of seriousness in the nine years Pullar had battled ACC since suffering a head injury in a bicycle accident.
The ACC report stated a letter had been sent to Pullar after the meeting that insisted the information be returned to ACC. According to Boag, there was more information in the letter - including the offer of a single year's benefit.
Boag detailed her recollection last week in an email to Collins, which was obtained by the Herald on Sunday. The email said it was "verbally agreed" the information would be returned "on agreement on the way forward".
It said the staff member had offered Pullar in writing "one year to re-establish her business". The staff member's written offer "asked for the return of the data (but) did not acknowledge that this would be contingent on reaching an agreement acceptable to both parties".
Boag said it was significant ACC staff did not warn its management or minister until after the breach became public. She wanted ACC to deal with the privacy breach internally and not as a public issue. "I am a supporter of this Government and I also call [former ACC minister] Nick Smith a friend. I don't want him embarrassed. I have friends on the ACC board. I do not want them embarrassed."
Boag said she was furious her letter had been leaked.
Collins confirmed she had received Boag's letter but sent it straight on to ACC. It would be included in the ongoing investigations into the security of ACC's privacy systems.