I never bought the Barbados hot sauce because it looked too mustardy.
Now that it's Caribana , you may find Caribbean offerings at stores like Walmart, food Basics and Metro.
If it's been discontinued, only Asian stores may have old stock on their shelves.
Is it the Nupak brand you are looking for?
Nupak has discontinued some of their products it seems.
Like their dried pigeon peas which was a hot seller.
As far as Matouks, only one I like is the West Indian hot sauce with chunks of papaya.
It's what I have with my Fried chicken.
Chiefs has a yellow mustardy sauce but I don't like the taste of chief products.
They are watery and full of fillers it seems.