UK Letter Before Action

I am looking for a UK-based legal professional or experienced paralegal to draft a Letter Before Action in relation to an ongoing payroll and PAYE issue with a former employer.

The issue involves incorrect and continued PAYE submissions made under my National Insurance number during after my employment ended, resulting in an incorrect tax code and financial loss. The employer has acknowledged the issue but has not resolved it, and the matter has also been raised with HMRC, ACAS, and the Information Commissioner’s Office.

I need a clear, legally sound Letter Before Action suitable for Small Claims Court, setting out:
• The background and timeline
• The employer’s legal responsibility (regardless of payroll provider)
• The financial losses incurred
• A clear demand for resolution and payment within a specified timeframe

I can provide a full written summary and supporting documents.

UK legal experience is essential