That is because you're a girl. Man up and run it off.
Aye, t'is the problem with the cheap suit business. They are fine for a Fisher Price, My First Suit, as a child/teen because you're still growing. Once you stop, it is worth shelling out on a good one.
And the vast majority of suits are off the shelf items but taken in where needed. You'll be hard pressed to get a full on from scratch suit. Really it has to be a Savvy Row bespoke job, which is next on my list. But it is big bucks.