请教==case状态查询显示内容

先祝大家新的一年里，开开心心、顺顺利利！
有关case状态查询的问题想请教各位前辈，submit document 之后，查询case状态，你们都显示什么内容？我的显示是At NVC，然后下面一段文字，什么意思呀？我觉不应该有这样一段话呀，是不是没有收到我的package？请各位前辈指点，非常感谢！
Please follow the instructions you received from the National Visa Center (NVC) that list the six steps you must take before NVC can schedule your visa interview appointment. This includes submitting to NVC various fees, forms and documents. Once NVC has received all the required items, they will let you know if anything is missing or incomplete.