There are many ways to generate a complaint letter. A complaint letter should include a background which describes the situation. Second comes the problem, how the situation has caused/effected you. Third is the solution, how to remedy the problem. Forth is the warning(optional) and last is the closing. There are many programs online which give you samples, templates and generators. Scott
. Pakin's(www.pakin.org) automatic complaint-letter generator is a great way to generate a complaint letter by filling in requested information.