Hello ladies, first time posting in this thread! I need your advice. After many years dreaming with the Bar jacket, I was finally decided to buy it. My local boutique never had my size in stock, but it happened to have one available this time so everything looked like a dream. But I went yesterday and tried it on… and I found out that I couldn’t close it

…!
The SA was very kind and told me that one should be able to close it. I tried a size up, it closed tight but the shoulders were just off.
I wonder if it’s OK to have the Bar jacket and not be able to close it, or if I should pass and admit that the Bar is not for my body shape (I’m petite, not big breasts but yep, a 90C so bigger than what Monsieur Dior designed for unfortunately…). What should I do?
When at the boutique, I also tried the classic trench, and oh what a beauty! Same price as the Bar jacket. A forever piece as well… and this one I can close it.
Now I wonder if I should take the Bar jacket anyway and wear it open, or if I should pass and take the trench instead. I would love to have a staple piece that I can wear and enjoy for many years to come.
Thanks in advance for your help!