It is not a request FOR form 4564 ... it is a form 4564 which is requesting more information ... read the notice carefully and respond appropriately and timely. If you are in an audit and they are asking for a lot of information then you may wish to seek professional guidance from a local tax professional or tax attorney ... this can be very serious depending on what they are asking for.
(what the letters from the IRS mean)
I GOT A LETTER FROM THE IRS
I AM BEING AUDITED
If you purchased Audit Defense:
If you did NOT purchase Audit Defense: