I only have the billy trousers which are on a par with Toast sizing (if not slightly bigger). I like some of the dresses but not buying anything big until the weather warms up. About the sample sale insta page: it gets added to quite randomly with no warning, rather annoyingly - usually in one go.
@Snowyowl78 - I hope you've guessed right. I hate buying blind when I have to pay for returns, especially when sizing is odd. Maybe they do free exchanges?
Looking forward to seeing what Toast has coming up next!