No assumption of substitution is justified. Current official terms assign each eligible joining spouse or unmarried child under 21 US$15,000 processing and a US$1 million gift, including corporate cases.
Distinguish the private package from the official family process
The FAQ recommends including eligible joining family members initially for associated benefits. Identify which amounts a private quote actually covers and whether they are official payments or service charges. A package description does not establish family eligibility or status. Review the current instructions for each person rather than relying on a household marketing label.
A dated printout of the official page and FAQ, identity and civil documents for every included person, a complete source-of-funds file for the gift, a record of all prior U.S. travel and immigration history, and preliminary tax advice. Employment-based categories differ sharply on the first question, since some accompanying spouses are employment-authorized incident to status and others are not permitted to work at all, and that single difference often decides which route a household prefers. Payment does not itself confer status or preserve a child's age, so record each birth date and assess any Child Status Protection Act issue using the underlying immigrant-petition and visa-availability facts.