What rubbish from OFCOM.
The "Averages" stated give no useful information whatsoever - what happened to all the competent people who used to work at OFCOM?
Compared 'average advertised' and 'average actually provided' is utterly meaningless - they're going to advertise the faster connections much more than the slower ones. "We provide the slowest boardband in the world" isn't much of an advert, even if it's the product that most of the customers actually buy.
Where is the comparison of the shortfall between the product sold to individual consumers and the speed they actually receive?
That's before you get into the deviation - do *any* customers receive the 'up to' speed?
I'm pretty certain that the answer to that is no, which raises the question of by OFCOM, the ASA and Trading Standards are not stamping on these ISPs with great force for gross mis-selling.
No other industry can get away with 'up to' claims where no item/customer gets the maximum! A shop on the high street can't say "Up to 50% off" unless a significant percentage of their wares actually are being sold at that discount.
So where are the raw figures? Do we really have to do a FoI request to OFCOM to get anything usable out of them?