that was my first reply to them on their first call.
If they said that wasn’t possible, that is the first indication that they are liars.
Not going to mock you - there’s been enough of that.
And what I suggest may be shutting the door on an empty barn.
But if it was me, I would do a Day One System Restore.
And do it NOW.
And after that change every password and call your bank and
credit card companies and have them reissue your card(s) and
change your account number.