Keep it factual
A useful letter sets out the tenancy address, deposit amount, date paid, scheme search results and what documents were or were not received.
Use the eligibility check as the next step before trying to work out the claim alone.
Attach evidence
Include copies of key records rather than long explanations. Payment proof, scheme screenshots and tenancy agreements are usually more useful than argument.
Give a clear response window
Tenants often ask the landlord to respond within a reasonable period. Keep proof of sending and any reply.
Check eligibility