Let's take that last point first. So far, there's nothing to suggest official case numbers on @DHSCgovuk dashboard are wildly out of whack.
How do we know?
Because @ONS does its own survey and the growth rates it's seeing are pretty similar to those on the dashboard pic.twitter.com/kRqGcZ2o9f

— Ed Conway (@EdConwaySky) September 18, 2020