There are lots of rules regarding pay raise letter formats that you need to bear in mind. An appointment letter must state every one of the fundamental stipulations of employment with no errors and contradictions. A Greek letter representing the fundamental discriminant of the quadratic equation.
Cary makes promises he doesn't keep. This is the place where letter writing can arrive at the rescue. Although the letter will have personal reasons, it's a kind of business writing and should be professionally drafted. Your letter shouldn't sound you're over-confident and over-demanding.