Dear All
Please correct the following letter.

Code:
With reference to the below email, I look forward to hearing from you soon. Thanks
Please tell me how can I imporve the above letter, actually, I have selected in the interview and the employer told me that you can get an offer letter tomorrow but I didn't receive any letter from his site so that I want to write a follow up letter to him. Please check it and advice me.

Regards

Muzokh