My email to an online store:
Hey guys, I ordered product XYZ from your site yesterday. According to your shipping estimates, it should be here in 2-4 days. However, I see that it is not shipped yet. I have had one bad experience with your service before and would not like it to repeat. Please see that this is so.
Literally 5 minutes later:
Your order has been shipped.
Now if I can only get them to do it before I complain.