Women specific cycle clothing

Always fancied Chrome's Storm Pasha and a couple of weeks back my spring jacket gave up on me. So I was super excited when I found out that very pasha was on sale. (still is !)
I had no idea about what size to order, did their size test 3 times with pumped-up measurements, ended up buying the small one.
I'm 5.4 with a normal kind of body volume, but my hips are not massively wide.
It fits perfectly, with or without big hoodie under it.
I've been riding in it for a couple of weeks and I'm very pleased. I get super hot all the time, but the armpit zips and the both-ways front zip are great to regulate temperature. Its waterproofness is amazing.
And I find it quite cute too, the cut is feminine and nice.
I would have probably never payed £175, but so far I really don't regret the £87.49
http://www.chromeindustries.com/uk/en/apparel/storm-pasha

I was so taken with this review that I ordered one immediately! My spring waterproof gave up a few weeks ago and I couldn't find a replacement.
I ordered the small as I'm a size 8 on top. It's a bit big round the bust and a bit too snug on the hips (and the sleeves are too short) so I'm going to exchange for a medium. Chrome charge £4.95 for returns so is there anyone who wants a small, could order a medium then we do a swap?? Or who just wants to buy the small for £87 and I'll order a totally separate medium?