BB Espresso always seems very popular with those who like a coffee smell in soap (me included!). It does accelerate, and turns very dark brown, but seems to be long-lasting. The "Cafe Latte" and "Coffee Shop" FOs BB came out with a couple of years ago are nice, and especially interesting because they DO NOT turn dark brown! They still discolor a bit, but give a lot more scope for layers & swirls. Coffee Shop is more of a bakery-plus-coffee scent. Hmm, wonder if adding a layer of Espresso would amp up the coffee vibe. There's also "Dark Roast Coffee" but it has a note of hazelnut that doesn't appeal to me (because I very much dislike hazelnut flavors and smells in anything!), and it also goes dark brown. Maybe I'd like it better blended with another one of the Cafe scents.
For BB customer service, I've found it best (easiest and fastest) to use the chat function on the website. I've had a couple of orders with issues but they were promptly fixed.
I wonder if the Chocolate Espresso was discontinued because the latest IFRA usage rate is pretty low. I understand changes in the formulas at the manufacturer can also cause problems. But no clue as to what really drives those frustrating decisions!