What did you say to convince them to give you a refund? Did you admit you ordered the wrong one or gaslit them into thinking they sent the wrong one?
I personally did have references, my darevies are EU L/asia XL and I did check the sizing chart, but it's just so wrong. It should have been my size but it's huge
You can't just order the same size from a different company. Even for western brands that's not working. And this is why trying a new brand is probably disgusting.
If you take the sizing table. These values correspond to the jacket measurements (for ykyw.. that may be different for others).
When you measure that values. Are they in agreement to the table?
And why is it important to know whether the table indicates fabric or body measurement: E.g. if you have 100cm fabric measurement on the chest , your chest measurement must be larger, cause the elastic stuff is designed for minus values. If the jacket and your body have the same measurement, it will be to large. It's pretty ugly to get the right sizes when it's so easy ṭo get in this trap. And then it's also a question of ,'design'. If the designer wanted that to be very tight ,a size up could be good. And the other way round.