You can view your past 18 bills online. When you're viewing your e.bill, click on the drop down menu (shows "current month" by default") and select "more" and it will list all the past bills in PDF format. 🙂
if you have a telusmobility online account, you can try this:
from your account, click on (TABS):
it will show you the past 18 bills by showing you the dates listed. just click on whatever date you are looking for and it will show you the PDF ( an electroni presentation of your bill).
if no online account yet, call telus: 1866 558 2273