[qasdfdsaq]

http://www.bbc.co.uk/news/technology-33083056

When a customer signs up to a deal, an ISP must give a range of speeds a customer can expect - for instance 20 to 40 megabits per second.

However, there is an additional measurement the companies refer to less often: the minimum guaranteed access line speed (MGALS).

This represents the fastest download speed delivered to the slowest 10% of customers on a similar service.

For example, there might be 10,000 homes based 4km (2.5 miles) away from the local telephone exchange.

If the fastest speed achieved by any of those in the 1,000 slowest properties was 7Mbps, that would represent the MGALS.

Until now, users could abandon their broadband contract without penalty within 90 days of its start if their home fell below the MGALS.

Under the revised code of practice, they can do so at any time, so long as they have given the provider a "reasonable" opportunity to fix the problem - for example a few weeks of time and access to their building.