People on Universal Credit are being told they can slash £460 a year off their annual bills by making use of ‘secret’ tariffs not offered to customers earning big money.

Deals on ‘social tariffs’ are not usually advertised by companies because they aren’t the lucrative money spinners that a standard customer contract is but every company is obligated to offer one.

Social tariffs are available for both broadband and for water bills, and are usually much cheaper than standard…