Hi @davidshields and welcome to our community.
Thanks for posting. I'm sorry you're having problems with the connection dropping. If you haven't already contacted 150 I'm sure I can help with this. If that suits please check your inbox for my message and drop me a reply with the details.
Cheers
David
Fault fixed.
Engineer found a broken copper cable within the feed into my house.
Utilised slack on the cable and re terminated the wiring.
Also replaced my internal socket with the new ‘Master Socket 5C’
Engineer reckons it was just ‘old age’ of the cabling that caused the wear and tear.