Harris Tweed Dark Blue Herringbone Waistcoatº

Size is incorrect. I bought a 52 jacket in May which fits me perfectly but ordered a 54 waistcoat as I prefer them a bit longer if I wear it without the jacket. When the waistcoat arrived it is definitely not a 54. It is way tight on me. I also have the brown herringbone from them in a 54, and it’s way bigger than the dark blue 54 I received.