Sorry to hear of the landline issues experienced, we appreciate you taking the time to raise this via the forums and welcome to the community.
We've taken a look and there is currently a known issue in the area, this will be impacting your broadband and Hub. Can you confirm if the landline works via a wall socket or the Hub? If it is the Hub this might explain the issues but if it is a wall socket it will need looking into further.
Thank you for confirming those details. I have booked a visit for the next available slot which you can view here via the MyVM app. If there are any issues with the date or time please let me know and we can look to alter this to something more suitable.
Please be aware that any changes would result in a delay to the visit as this was the earliest available, there also needs to be someone over the age of 18 in the property at the time of the visit.