No. An omission in a private quote does not replace the published family terms.
Rebuild the quote for the actual intended household
The FAQ recommends initially including the eligible spouse and unmarried children under 21 who will join, each with US$15,000 and a US$1 million gift. Identify who was actually included in the old estimate before treating it as a complete family budget.
The official program allows qualifying family inclusion with separate charges for each joining spouse or unmarried child under 21. A private quote is a commercial document describing the scope of services a firm agreed to provide at a particular time, and its silence about a spouse or child usually reflects the scope that was agreed then, not a promise about what the family will owe later. Before treating an older estimate as complete, ask the firm that prepared it to confirm, in writing, exactly which people and which charges were included when it was written, since an estimate limited to one applicant can look misleadingly small once the rest of the household is added. Request an itemized version that names each family member by role, distinguishes government charges from the firm's own fees, and states the date it was prepared, so a stale figure is not mistaken for a current one. Because published terms can be updated, reconfirm every figure directly against the current official page before relying on either the old quote or a new one, and keep the dated confirmation with the file.