This assumes customers would want to return three days later just to tell you that a problem happened last week. Most people do not do this, especially if they

This assumes customers would want to return three days later just to tell you that a problem happened last week. Most people do not do this, especially if they can make it work on Monday. Nearly every time that I experience a problem on a website, I try to report the bug / customer experience. And nearly every single time, if it's even possible for me to report it at all, it takes me 30+ minutes just to figure out how to report it. And that's during customer service hours! If it happened when customer service wasn't there, I'm definitely not coming back the next week just to tell them their website has bugs.