This is a customer forum, directing the statement "YOU" will have zero power for what you are trying to do.
And yes NOW supply you the internet, however ITS NETWORK is OWNED by OpenReach and not NOW. So they HAVE to RELY on OpenReach to fix it.
At best NOW can provide discounts/refunds.
Also its not Now TV anymore, it dropped the TV part of the name from March. It is just called NOW.
To those who claim it's an OpenReach issue that affects all internet provides: while it's true that everyone offering DSL services is renting BT phone lines which are owned by OpenReach, and that OpenReach did cause issues for all providers in the past, this particular problem in south east England is a problem strictly at Sky Broadband (of whom NOW is a subsidiary, the NOW broadband service is provided by Sky), so it's just Sky and NOW.
Other providers like EE, PlusNet, Vodafone, etc have not have any issues.
The curious could also have a look at Downdetector, and looking at the proportion of reports above the baseline (dotted line), e.g. Sky vs EE, BT, Plusnet, etc
I would be tempted to switch the power off to your Router and TV by unplugging it at the mains outlet for a minute, restart the Router (give it 5 minutes where hopefully the three green lights will show again, then switch back on your television).