Colorado state tax

Filed 2023 state tax with Colorado was supposed to receive $2570 refund. Only received 970 (Which is the refund less the state sales tax refund of 1600). No explanation.  2024 I received a 1099G for the $970 but turbo tax automatically input the $2570 that I should have received. How is that correct? It reduces my federal refund for funds I never received.  We both qualified for the TABOR. 
Any help would be appreciated.