Formal Letter of Complaint Formal Letter of Complaint Tips Formal Letter – Complaint Example 1 Formal Letter – Complaint Example 2 Formal Letter – Complaint Example 3 Formal Letter – Complaint Example 4 Formal Letter – Complaint Example 5 Formal Letter – Complaint Exercise 1 Formal Letter – Complaint Exercise 2 Formal Letter – Complaint Exercise 3 Formal Letter – Complaint Exercise 4