Is it really worth it to them to pay for the higher package when that suggests at best they will gain a couple of a megabits?
The point is they are paying for Fibre 1 switch is usually provisioned at 55/10.
It's sold as "average speed 50Mb".
The line
could get 48-52Mb'ish with a 3dB profile.
It's a Huawei cabinet with G.INP enabled.
I achieved higher than my clean A estimate from the day my VDSL went live till the day I ceased it.
I'm not a fan of ISP's locking lines to tiers close to customers estimates on products sold with higher average speeds than the tier they provision on.
Sky do this all the time now.
They no longer have a specific 80/20 package and just put the customer on a package that matches their estimates.
It means there's a whole bunch of Sky customers hitting a 40Mb sync and probably not knowing they could get more if Sky opened the tap.
Those that notice find it impossible to get Sky to reprovision them.
TBB has a fair few examples of this.