She said: "Mumsnet users have been calling for help with the ever-rising cost of childcare, which is a serious impediment to many mothers returning to work after children, for some time, so we welcome the additional funding going into this scheme.
"However there is concern that single-parent households might lose out whilst some very high earning two-parent households will benefit.
"A couple could earn £300,000 a year and still benefit. That doesn't seem sensible and is inconsistent with other cuts, such as those to child benefit and to childcare tax credit.
More top news
The former Friends star will front the popular BBC Two motoring show when it returns in 2017.
Viewers praised the "brave" TOWIE star after she opted to have the hook pulled out on Bear Gryll's The Island rather than in hospital.
Labour is to announce it will ban fracking if it wins the next general election.