Collecting self assessment liability for dividends through tax code, single director company

I am the sole director of a company receiving a salary through payroll of £12570 . I have submitted my self assessment tax return for 2023/24 to declare dividend income from the company and elected to have any liability under £3k collected through my tax code, which has been duly done with a K tax code for this tax year. My self assessment liability due 31 January 2025 is showing as a balancing payment for 2023-2024 being due plus the first payment on account for the 2024/25 tax year. For the life of me I cannot get my head round whether I still have to pay the amount showing as due in January or is this what is being collected by my K tax code!

Hi,
The underpayment from your 2023 to 2024 Self Assessment tax return will not be collected in your tax code until the 2025 to 2026 tax year.
The underpayment in your current 2024 to 2025 tax code must be for a different reason. To check this we will need to access your record. You can contact our Self Assessment tema to review this.
Self Assessment: general enquiries
Thank you.