Confirming your cancellation request has incorrect date

I had this exact same issue!! I requested my services to end on my agreement end date, Aug 16. They sent an email that it would get cancelled on July 16, which the agent told me was normal but to ignore it. I ignored it, but they actually cancelled my internet on July 16. I called on July 17 to ask them to extend the services for another week until I can book my new internet provider to expedite the installation. Till now Telus has been charging me monthly internet fee and withdrawing that amount from my bank automatically, even though I've called them twice that I've already cancelled my services and they should not charge me. I contacted my bank and they told me I need to deal with it from Telus side, or else I have to pay extra to have it terminated from my bank's side of things. I tried to log in to my MyTelus account but they already closed it down since I've cancelled my services.