Other Stories, chapter 3, Aunt Dahlia's London house, same afternoon
Waterbury phones to say Trixie expects a wedding, demands two thousand pounds in heart balm on threat of breach of promise and Porky Jupp, and Aunt Dahlia summons Jeeves to confer.
The text is on its way.
Aside, some time before Oofy Prosser paid Waterbury two thousand pounds to escape marrying another of his nieces.