October
I requested my internet account terminated in September but I am still being billed. I reached out to Telus via phone and chat 4 or 5 times but I was still billed twice since I called for termination
October
Print a copy of your bill. Write across it: "I cancelled this account on <date>. I look forward to written confirmation of this cancellation." Sign it. Keep a copy, and mail to the address on the face of the bill. This constitutes legal notice to Telus of the changes you made to your account.
October
When you pull up the bill, which period does each charge cover? It's possible it's a final bill for services rendered covering the period before cancellation. There should be a date range for each line item.