Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
The specific email you are trying to access and having trouble setting up.. What does that email address end with such as @shaw.net or @gmail.com or @outlook.com?
To start with, I need to know the version of mac osx you have on your machine, you can check as follows.Click the apple sign at the top left of your screen, then click about this mac. And then where it says version, send that to me as a reply.
Fair enough! Though, I personally would be leery spending another 4 hours talking to shaw just so they dont fix the issue.
With that being said, here is the refund link as you requested.