Yes they should make good.
"To raise a complaint, or enquiry, that relates to health and safety concerns, employee behaviour, personal injury, damage to your property, quality of workmanship, wayleaves or planned movement of Openreach equipment. You can contact us through our chat facility. Just click on the icon in the bottom right corner of the screen and select the 'others' option and then 'contact us' to get started."
https://www.openreach.com/help-and-support/when-to-get-in-touch-with-openreach/complaints-policy
