If I ordered something and it was too late to cancel the order, is it ok, legal, acceptable, etc to just refuse the package and return it without opening it? A couple days ago I ordered water bottles...single walled...thinking I could buy insulated covers cheaply somewhere...haven't found any, and for the regular price of covers, I could have easily bought the double-walled bottles. SO, now I am trying to see if I can still cancel the order, but if I am unable to, I was just wondering what my cheapest options were to fixing my blunder. Thanks.