I can attest to this. A couple of Christmases ago, I was chatting with an SA in my home H when a guy walked up to her, interrupted us and bluntly asked to buy a B. The SA mentioned the mythical waiting list and turned him down. We weren't even in the leather department. She told me that she gets versions of this question all day.It isn’t, but it is the holidays, they are getting a lot of walk-in’s like this, and SA’s are under pressure from their own clients and their client’s husbands. Before you walked in she probably had the following conversation 10 times that day: “For Pete’s sake, my wife spends a fortune at this store, what do you mean I can’t get a pink Kelly 25 today, it’s what my wife wants for Christmas?!?! Just give it to me, how hard can that be?!?!” The SA you spoke to was also probably wondering why you weren’t at the store where your wife normally shops. The advice to go to the store where your wife shops and speak to the store manager was excellent advice. Good luck!
Another factor might be how long your wife has been with the SA or that boutique and what is in her wish list. If she has only been buying H for a short while and her bag choice is very popular, the SA would probably offer it to a longtime client rather than her, especially since you say that there is not that much chemistry between your wife and the SA.