I had this happen to dd's new back-to-school backpack at Christmas time... the carrying handle broke! Called llbean (their last llbean backpacks lasted 3 school years - still nothing wrong with them, they just wanted something different), llbean sent a new one out to me (charged me for it) then I sent the defective one back to them using the new packaging - then they refunded me including shipping. A little hassle... but not too bad.
Now, other dd's backpack did the same thing - must have been a bad batch this year with the handles - so I'm going to have to exchange another one. Like I stated before, their last backpacks lasted 3 years - and we still use them for sleep overs and trips to the cabin... So, to have the same problem with both backpacks purchased last fall really surprises me.
D~