Lynne Dawson

I have endeavoured to approach my past employer about an error made in a salary paid to me. They have already provided information but this does not answer my query and I believe they still owe me some salary for the tax years 2022/2023 and 2023/2024. I also believe they utilised the incorrect tax code. My past employers (a Parish Council) have informed me (quote): "All matters of employment have been settled and no further communication will be acknowledged in this matter." QUESTION: Please let me know if my employers can say this as I am endeavouring to sort out my tax affairs and without this information I cannot make progress. Is there a legal obligation for them to provide such information. If so, what is the regulation?