Thanks for using the forums to get this issue looked into and resolved with your HUB, I am so sorry this problem has been persisting for such a length of time. I have had a look at your services and also your usage and can see that you have had no usage so far this month, which reflects what you are telling us. I can also see the multiple engineer bookings that you've had with no resolve.
Can I ask what the engineers found when they came to visit your property please?
I have also contacted your local area service manager to ask for further information about your issue, I have been told they may contact you in order to re-evaluate the issue and see what else they can do to help.