Just because you order something from Amazon doesn't give you unlimited time to return it. Also, just because there is a return item button next to your item you recently ordered, doesn't mean it can be returned!
Recently I ordered a few items, and was taking my time to find a part that went with it so I could then return everything together. Today I finally got everything gathered up and was about to print out a return slip from Amazon. I found the item that had a return button next to it, but when I clicked it, there was another page which gave the unwanted information that the return period had expired on a previous date... Now I must either deal with the manufacturer for the waranty, or repair the item myself.
So a word to the wise, check your ordered items more quickly, the return period is shorter than you think.