Easy to fix, find a 2010 in another store, take the bike back and that u want your money back, if they ask tell them that u got a money problem or that u got second thoughts, they have to take the bike back. Or tell them the truth, risking a non returnable item hidden policy. I have returned stuff because they screw me up like they did with you.
If ti worth the comment, many times stores get stuck with $hit that is like 3 years old and they sold it as the new model. Since people do not pay attention and probably even the kid that sold you the bike has less clue than you, for him is just another bike that's it. I have seen it with shoes, frames, components etc So it doesnt surprise me