Had a look at Finding Freedom and this is how Scobie describes the bridesmaids fitting, nothing about Ajay. According to him it was all Clare Waight Keller and 2 Givenchy Assistants so presumably Ajay the tailor was called in after this. Just how shoddy is Givenchy's work?
"A source, who was at the mid-May fitting and has never discussed what really happened until this book, said that stories about tears have been “puzzling” to those who were present. “Some of the children weren’t cooperating, and there was a lot going on. Everyone tried to help where they could, but it’s never easy with kids at fittings. There were no tears from anyone. And in the end, the fitting was fine. Kate and Meghan were both a little stressed but professionals in the room, and there were other people there, including Clare [Waight Keller], Melissa, and two Givenchy assistants.”
Omid Scobie, Finding Freedom