You have to find out how to fill out the request form or forms when you made contributions at different times
the earnings are calculated for the time period the contribution was in there.
OR, Vanguard computers will note the two contribution dates, and handle it.
It's all reportable on 2023 tax return, since it is currently before the tax return due date.
The Vanguard rep may just be confused, as was Fidelity rep.
