Demand Letter for Final Pay

I need a professional demand letter to recover my unpaid long service leave. I am a full-time employee and have already communicated with my employer about this issue several times without resolution.

Requirements:
- Clearly state the unpaid long service leave
- Include a request for immediate payment of final entitlements
- Professional tone and legal accuracy

Ideal skills and experience:
- Legal background or experience in drafting demand letters
- Familiarity with employment law and long service leave entitlements
- Strong written communication skills