Called the bike shop today. They are willing to take it back. They have only 1 or 2 15" bikes in the store at the moment so maybe that is why they were pushing the bigger bike. The 2012 model I bought can't be ordered and the 2013 model only comes with 29" wheels...so my next question is: pros and cons 26" vs 29" ???
Can't wait 'till this is over and I finally have a bike to ride!