Tenants with one spare bedroom have had a payment reduction of 14% and those deemed to have two or more spare a reduction of 25%.
Lawyers for the 11 cases say that, unless the families move from their homes into smaller properties, they face building up rent arrears and being forced out any way.
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The winner of X-Factor Ben Haenow has revealed how keen he is to have the Christmas number one.
The Ministry of Defence has announced that the first British reservists have set off for Sierra Leone to help tackle the Ebola outbreak.
Wintry sunshine for most of the country today but some showers expected in the northwest.