Which? calls for curbs on super-fast broadband ads as 15m homes miss out

Sky, BT and other companies can advertise high-speed broadband claims even if they are only available to 10% of their customers

Consumers' group Which? has called on the advertising watchdog to ban companies such as Sky and BT from advertising super-fast broadband promises when more than 15m households don't get anywhere near the speeds they pay for.

Under the UK advertising code, which is administered by the Advertising Standards Authority, companies are allowed to advertise their top speeds even if they are only actually available to just 10% of customers.