A complaint letter is a written communication that raises concerns about a product or service, or other types of grievances. The purpose of the letter is to address the problem and seek a productive resolution.  Here are some tips for writing a complaint letter: Be clear and concise - Address the letter to a real person - Be honest and straightforward Maintain a firm but respectful tone Avoid aggressive, accusing language Include your contact information Tell them what you want Do not threaten action Keep copies and records State exactly what you want done and how long you're willing... Show more

A complaint letter is a written communication that raises concerns about a product or service, or other types of grievances. The purpose of the letter is to address the problem and seek a productive resolution. 

Here are some tips for writing a complaint letter:
Be clear and concise - Address the letter to a real person - Be honest and straightforward
Maintain a firm but respectful tone
Avoid aggressive, accusing language
Include your contact information
Tell them what you want
Do not threaten action
Keep copies and records
State exactly what you want done and how long you're willing to wait for a response
Include copies of relevant documents, like receipts, work orders, and warranties - Include key dates, such as when you purchased the goods or services and when the problem occurred - Identify what action you've already taken to fix the problem and what you will do if you and the seller cannot resolve the problem 

An order letter is a formal document that requests products or services from a seller or vendor. It's also known as a purchase order letter.
Some details that an order letter may include:
The items or products being purchased
The quantity, color, and other specifications of the products
The mode of payment
Shipment details
Delivery date(s)
Delivery address
Delivery deadline  

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