advance child tax credit - doubled-up?

Married filing jointly. We have received three checks for $325 each for the advance child tax credit in 2021. I have deposited these, fully assuming I make too much, and will have to pay back. Fine. However, the IRS sent us TWO notices, of $975 each for my wife and me, although we only received $975 total. Obviously, if I enter that, TurboTax adds them up and tells me we have received $1,950, and I have to pay more.

 

Were the other $975 already applied by the IRS in the back somewhere? Or am I being double-dinged?

 

Thank you.