When I was there in March, I called the evening before my flight, they told me they were sold out. But when I got there the morning of my flight (less than 12 hours after calling them) and asked if they had blue or black caviar mini’s, she brought out 2 black ones, a grey and a blue. She had more in the back but they weren’t in the combo I was looking for.
So depending on who answers the phone, they may just tell you they’re sold out. It’ll be more reliable for a personal shopper to find them for you.
The SA there said that they only get mini’s twice a year. This past March was when they were getting a lot of shipments of mini’s. Not sure how the inventory is now, but seems like a lot of folks here were able to score a mini in Feb/March pretty easily.