We assure to complete any kind of add-in special services like book formatting, editing, cover designing etc. within 7 to 14 days of payment after receive of the final author communication. Frequent instruction changes or additional change request may keep increasing the cost and timeline. It is highly recommended to be crystal clear about your expectations and express the same to our team clearly, if possible with some example. In case you are not a professional (95% cases) in that service sector, you can completely trust us. We will provide our best effort to come up with the industry standard solution.