Typically when a post has been completed it can be delivered via the unique Live URL that the brand or agency sent. However, there is no way for Instagram stories to be manually delivered. Story content will be pulled in on its own as long as at least one of the directed hashtags and/or mentions is used within your post. The required hashtags and or mentioned can be found by using your Live URL, within the "Media Requirements" section.
It is also important to keep in mind to use the hashtags and/or mentions in the exact way they are directed. Slight altercations to these, such as adding a capital, will cause our system to miss your content when crawling which will prevent us from pulling it in.