The flying pigeon bike only comes in one size, a 56cm. If you are the average sized woman, this bike is too big for you and no amount of adjustments is going to make it work.
from their website:
There is only one size and color available: the single bar PA-02 in black. This bicycle is approximately a 22" (56cm) frame size, best for those with a 32" to a 38" inseam.
It's a really cool bike and you ought to be able to sell it if the shop won't take it back.