Just an odd question

Would you people consider it bad service if, for ebay auctions, it takes the person over a week to even acknowledge your payment? I mean, I've noticed alot of auctions I've won recently take one to two weeks to be shipped out. I know this is probably just splitting hairs, and people don't have alot of time during the week to mail things off, but when it takes an online e-bay store two weeks to realize that I paid the wrong amount for shipping *the error was corrected*, would you start to consider that bad service? What exactly is the set week limit on stuff like that?