This is a pretty amazing video showing you how uninformed so many customer service reps are. This guy called Verizon 56 times and asked two different questions:

What is the data overage rates for the basic 10MB data package for $29.99?

and

If you get the Core Choice 450 minutes package with unlimited data, what is the data roaming rate in Canada?

This video was done before Verizon publicly pledged to retrain their customer service reps, but the video still goes to show you how poorly customer reps are trained.