Someone else's TELUS TV+ profile has overwritten mine, serious account linking issue?

Do you live at separate addresses with separate internet accounts? When you go into your account (I would go to telustvplus.com in a new incognito browser session) with your username and password (the same one you use to log into telus.com/mytelus), do you see the same username that your relative sees on their account when they log in with completely different credentials? You may need to both log out of all devices running the TELUS TV+ app and log back in at your own homes/on your own internet connections. Depending on the device, if you log into an app or set-top box on someone else's home internet, it may log you in to their account automatically; 2 Optik TV services on the same internet account is not supported.