I think the key is that you bought it online. You need to call them then. I returned a case I bought at Apple Canada. It didn't fit the new macbook. They said I had to ship it back to them at my own expense. I didn't really press them on it. But I ended up swallowing the $8 shipping. So, call them and see what they say. In some cases you might be able to return it to an Apple Store, but not always.