Feds paid more than I thought for my 2022 tax refund, then took part of it back - anyone have that happen?

After using TurboTax, I got back a tax refund for my 2022 Federal taxes but it was for more than I thought. When I looked at the Fed account transcript, they issued it for amount A. Then they subtracted amount B so it matches the refund amount C, the amount I thought I would get back. They called B Interest credited to my account. It's as though I made another estimated tax payment B. Does that mean they made a mistake on the refund and took back B so I would only have C, the original refund amount?