Call them. No seriously, call their support.
When they pick up the phone, say: -"Hi, my name is <name> and I'm doing a project for school on Telus and was wondering if you had time for a few questions."
If you are put through, repeat the sentence to the next person.
Have a list of questions ready.
Hope this helps.

EDIT: Say thank you when you are done.
I actually considered doing that, but I really started freaking out (phone anxiety) and decided it wasn't worth me having a meltdown or anything. I got to learn how to like phones...