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Finally got my letter but it does not mention anything about sending back more than form 1095A and 8962.  They never mention that if there is a change in your refund, to send schedule 3 like others have mentioned  here.  Also they sent an envelop and a return page for it, but it says for inquiries only.  Can I use that and send all in the envelop they provided?   Somewhat confusing.   If I go the fax route I don't feel as safe as mailing it and am I to assume IRS will make the change to the refund +/- without the second page of 1040 or schedule 3 updated?  Anyone had this cleared up for them?