NWT SKIMS COTTON CORSET BUSTIER Size Small in Charcoal

Just received. Tried on but not worn. Still has tags on. A little snug, I am 34C with a 27” waist and think I should have sized up to a Medium. Considering to return for store credit but will offer for 48 hours if anyone is looking for this sold out piece. Asking price is firm as I would like to to get back what I spent.