Hello,
Openreach here.
Your passcode to change your password is 213589.
If you didn't expect this passcode please contact us at https://www.globalservices.bt.com/en/aboutus/contact.
Your verification link is: https://get-this-app.com/greenekingseasonticket/verification/77084aed1a4440e491852ec925fdc74e/910b005196d04361b1a1c2d7d6ea3a00