Tried Explaining My Issue and Agent Rudely Responded, "Are you done?"

Yea, my experience with Telus is that, because of all of the complicated discounts that the marketing department force on the technical and billing departments in order to get "cost motivated" customers instead of "value motivated customers that the CSA's will have a struggle navigating the switches to endure that you bill is correct for the services you want.  It will try your patience - no doubt, but remember it is also trying the patience of the CSA (you are both in the same boat) and they are at least (every-time in my experience) fighting on your side to get a satisfactory solution.  Try having the same conversation with the opposition Shaw/Rogers etc and you will come to truly love the CSA service provided by Telus: with the other guys the trying conversation ends mostly without any resolution - the status quo being their preferred solution.  The last "rude" (in your words) conversation with Shaw the agent just told me "you must move to Telus and that I will help me by cancelling your Shaw service immediately".