Uh, I guess because they're comics you can't return them. It ain't a library, know what I'm sayin'?!
Do you accept orders placed outside of the US?
I'm not sure, if you place an order and it turns out to be way too expensive to ship to you, I'll let you know, cancel the order, and refund your money.
How long will it take to receive my order?
Once shipped most orders in the U.S. take 2-10 business days, depending on how drunk or incompetent the post office peeps are.
I'm guessing that international shipping might be more like 2-12 weeks, depending on where you are.