Don't accept this. There is a huge difference between a fitting and a sizing. You got a sizing and a very poor one. There's a world of difference between a bike that fits well and an "almost" fit.

From the Master Bike Fitters Association:

"Sizing” based methods are often used to buy and sell bikes via the internet and by shops who do not have a firm commitment or understanding of fitting. A bike sizing usually takes under half an hour and can consist of as little as seeing if the rider has stand over clearance over the top tube or (at the most) taking some basic body measurements and then selecting the bike size based upon this. A “sizing” is limited in scope and does not take into account important individual rider based variables or even whether the bike is even offered in a frame geometry that is suitable to your needs. The end result of a “sizing” is that the rider must do their best to adapt to the limitations and constraints of the model that is chosen. Despite these substantial limitations, the vast majority of bikes, even high-end bikes, are bought and sold by “sizing”.

http://www.fitwerx.com/bike-sizing-v...g-fit-formulas

This bike is too big for you, the frame itself may not fit your needs, and sooner or later you will be sorry you bought it. Return the bike and go somewhere else.