Hi As per as I know we can purchase more service even after purchasing general order. And I heard from many buyer they do not see any option to buy more extra service with general order. And they cannot add more service as extra purchase. As per as I know there has no time and frame and buyer can add extra anytime. But still I confused really is there no any time frame for purchasing gig extra? I hope someone get me very specific answer with this issue. And If no time frame so, how does it work for quick delivery service?
