Hello, when did you give him the work to do for you and when was he supposed to submit it back to you? If you want a quick response from Robert, just write a message direct to his inbox and if he does not get back to you, just withdraw that assignment from him and give it to me, I will do it for you and submit it on time. Thank you.
Please let me know if you need any clarification. I'm always happy to answer your questions.