it seems you got too much in 2023 and are repaying in 2024. you can't amend 2023 because it's correct. so it seems the only way to get your money back is in 2024 when you file in 2025 and claim a credit under IRC 1341 if the repayment was over $3,000. if less, you are only entitled to an itemized deduction in 2024.
