Instead, the KE offers consumers the option of instalments with a 50 per cent rebate, which is nothing, but a form of coercion and extortion.

The Consumer Action Law Centre has used its new powers to make a "super complaint" to demand a ban on door-to-door sales, an issue they say has harmed vulnerable people for decades.

The government is currently providing homeowners with tax credits for upgrading their water heaters, but the incentives are ...