I actually found a package (a round roll) of Cadbury's chocolate coated shortcake 'biscuits' (imported) at a Celtic Festival a few weeks ago. I made them last 3 weeks.

I used to buy Cadbury's Shortcake Snacks 40 years ago in a rectangular package with 6 little squares of delicious coated shortbread. I can find some Cadbury products now & then, but I'm sure they are not the same.