@Eddie78, keep an eye out for a response from staff - they are not back full time till after the New Year holiday.
You had a similar problem 3 years ago but didn't seem to follow up - helpful if you can let us know how things go.
https://community.talktalk.co.uk/t5/Fibre/broadband-speed/td-p/2394281
Gliwmaeden2, a fellow customer.
