It has already been accepted upthread that Rossi claimed to offer IH a refund. So I'm not going to play fetch.
Other things on Rossi's JONP blog have been entered as evidence.
And - for the 986th time - even if other things on the blog have been entered into evidence1, that doesn't mean that everything from the blog is admissible.
And, as woodworker and I have both told you, stuff that happens in settlement talks generally isn't admissible. Federal Rule of Evidence 408:
(a) Prohibited Uses. Evidence of the following is not admissible — on behalf of any party — either to prove or disprove the validity or amount of a disputed claim or to impeach by a prior inconsistent statement or a contradiction:
(1) furnishing, promising, or offering — or accepting, promising to accept, or offering to accept — a valuable consideration in compromising or attempting to compromise the claim; and
(2) conduct or a statement made during compromise negotiations about the claim — except when offered in a criminal case and when the negotiations related to a claim by a public office in the exercise of its regulatory, investigative, or enforcement authority.
So your mythical offer to settle probably doesn't come in either as evidence that Rossi thought Rossi owed the money or as evidence that Rossi lied. Both uses are explicitly banned. (The rationale being that settlement negotiations should be encouraged as much as possible.)
1: Technically, nothing has been entered into evidence yet. There are things that have appeared in the various things we've seen from discovery, and lists of stuff that the parties intend to admit, but they still have to jump through all the right hoops in the right order to get the stuff admitted.