I want to write a letter to my manager requesting to provide incentive for few employees those who are not receiving this benifit. Please see below and correct it.
This is to inform you that the following staffs are not receiving incentive or any special allowance apart from their monthly salary. Therefore, I kindly request you to consider these employees for incentive.
Yes it is based on the performance
Then you should give your opinion about their performance and make the recommendation if you are in a position to do so, that is.