I made two withdrawals in March and April of 2023. I had taxes withheld amounting to $8,400. I received a letter from the IRS saying I owed $9,525 (tax, penalties and interest), turbotax says I should have received a $406 refund. So I went through my Turbo tax for 2023 and I see where I did add the $8400 as tax payments, (Maybe the wrong place to put taxes withheld by a brokerage?). The IRS doesn't seem to have notice of or received the taxes that Vanguard withheld. Has anyone had a problem with Vanguard not notifying the IRS of tax withholdings and where would I find this tax (if paid) on the IRS.gov website?