Non-repayable tax

I have received a tax calculation for year ending April 22. Under the "Income" heading it has income of £1 from "Foreign pensions or other income" and the tax paid on it is £9.60. I do not have any income from Foreign Pensions or other income -- the £1 appears to be a nominal amount for some reason. The next line says "Less non-repayable tax" of £9.60, which appears to cancel out the previous line. Then in the "Adjustments" section it says "Less non-repayable tax" of £9.60 and this has been deducted from my tax owed. Please can anyone explain this? What is non-repayable tax? It looks like some kind of fudge which I don't understand. Thanks.

Hi SummerT,
You will need to contact us to give your personal details in order for this to be looked at and corrected
Please telephone 0300 200 3300.
Thank you