Hello. No, I've only received the CP45 letter indicating what happened (the reduction), but nothing subsequently that would indicate the why.
The $400 seemed very round-number to me, so I posted in hopes that others might have received same letter for same reason (whatever it might be), as opposed to something specific to me or my individual filing, i.e. a typo or fat finger mistake.
Thanks for tip about transcript...I'll look into it.
