I was on a 737, Alaska crew, not ex-Virgin. I did not inquire, since by the time I realized I had been overlooked for both Biscoff and chocolate the cart was a few rows down and it wasn't worth trying to chase down a flight attendant.

But, if they really only get 18 chocolates per flight, there is a 100% chance that on a Monday, 6:00 a.m. flight there are more than 18 golds and they ran out of them before the exit row.