[Quote from]
https://arstechnica.com/tech-policy/2022/05/frontier-lied-about-internet-speeds-and-ripped-off-customers-ftc-says/

Settlement requires accurate speeed claims and payment of nearly
$9 million.

The lawsuit pertains to Frontier's claims about its DSL Internet
service, which is much slower than fiber-to-the-home. DSL speeds
also vary significantly by location based on how close a
customer's home is to the provider's infrastructure.

The FTC said the proposed order will "require Frontier to
substantiate its Internet speed claims at a customer-by-customer
level for new and complaining customers and notify customers when
it is unable to do so; require Frontier to ensure it can provide
the Internet service speeds it advertises before signing up,
upgrading, or billing new customers; [and] prohibit Frontier from
signing up new customers for its DSL Internet service in areas
where the high number of users sharing the same networking
equipment causes congestion resulting in slower Internet
service."

When I worked at Frontier, we always told customers "up to" in
reference to available bandwidth. Of course, overselling a DSLAM is a
bad idea, but I can't see how this lawsuit went through. "Up to"
speeds are just that; like any DSL service, it won't be consistent.
The AT&T ADSL that I have now is "up to 3Mb/s" -- in reality, it
sometimes achieves half of that.