And no, nothing at the link above from Tiffany turns out to be applicable, because my return isn't pending (it's supposedly "accepted" since March 24th, according to Turbo Tax); it isn't an amended return, I didn't enter an incorrect social security number or an incorrect filing status or an incorrect refund amount (I entered solely the federal refund dollar amount identified on my 1040), my return wasn't filed in late January or early February when the IRS is just overwhelmed, or anything else identified within the link that Tiffany posted above, which might resolve other filers' problem, but is not applicable in resolving mine.
(I also have 5 other family members who all filed the same day using H&R Block and all of theirs have shown up on the Where's My Refund site as trackable since at least the day after they received notice that the IRS had received and accepted their return. They don't have their refunds yet because it hasn't even been 14 days since filing. But they at least can see true confirmation that the IRS does, in fact, have their returns and is processing them. And the fact that theirs were all filed the same day as mine tells me that the hold up with my return isn't that the IRS was just flooded with returns and for some reason could locate their returns immediately as having been filed but not mine even 12 days after filing.)
So how can I know that the IRS really ever received my Federal return?
