How to write a letter for salary increase?

One day an employee sends a letter to his boss asking for salary increase !!!

Dear Bo$$,

In thi$ life, we all need $omething mo$t de$perately. I think you $hould be under$tanding the need$ of u$, employee$, who have given $o much $upports and $ervice$ to the orgrani$ation.

I am $ure you will gue$$ what I mean and re$pond $oon.

Your$ $incerely,
Nomani $mith

The next day, the employee received this letter of reply:

Dear NOmani,

I kNOw you have been working very hard. NOwadays, NOthing much has been changed. You must have NOticed that our company is NOt doing NOticeably well yet.

NOw, newspaper indicates world's leading ecoNOmists are NOt sure if the country may fall into aNOther recession. I wish it will NOt happen soon.

I have NOthing more to add NOw. You kNOw what I mean.

Yours truly,
MariNO PoNO