Radio silent is not uncommon with H SAs who have hundreds of texts. It can mean she doesn’t have what you want right now, but not necessarily that she’s forgotten your request. I simply don’t think H SAs are as responsive via electronic communication. Sometimes it can take a while, but when you next go in, she might say, I found what you are looking for.

Unless they are chypres (I’m a Madison avenue client, which I think is similar in competition/demand to SCP or BH), and Ive gotten a 25B and 25K offer in the last few months, but no joy on shoes lol)