I understand that you were looking for a job and one of those that you submitted an application was a company I worked before. It is with this concern that I am writing you this letter.
Since I have worked with the company previously, I am in a position to tell you something about it. It is one of the organizations which excel in the business. It has a good employee compensation scheme and the benefits are the best there is. During my stay with the company, I have not had any worry except for the completion of the tasks assigned to me.
I am therefore referring you to it. Your time and effort will be well compensated, as being accepted will mean the good life to you. If only I could still work, I would still be with them. However if you feel that it is not to your liking, I will understand.