can you also check this sentences "Can we make a last follow up call to client about his pending requirements? If we still don’t get any response, we will then proceed to next step."
Normally, this should be a separate query. But I will go ahead. Basically, you need to add the articles:
Can we make a last follow-up call to the client about his pending requirements? If we still don’t get any response, we will then proceed to the next step.