Current line speed is given as 49Mbps.

So a full 10Mb/s above the next product down i.e. 38Mb/s. Unfortunately Fibre and what you get isn't always set in stone. I used to get 76Mb, now 66Mb seems to be my norm, although having just had OR carry out a number of repairs to the phone line that might change. Would I drop to a lower payment? No way, simply because I value that upload speed far more than I value the download. But at the end of the day it depends what you use the internet for.

Thought I would update on outcome. After another engineer visit speeds were confirmed to be as fast as they could be. Several emails later asked them for a discount or a deadlock code. They asked me to phone retentions which I did and they offered a further discount on my existing contract. After a bit of haggling I was happy with offer.
Thanks for all the answers.