If you are paying market rates for childcare, check if there is a community childcare facility in your area. They offer much reduced rates for childcare in 3 bands
a) those in reciept of One parent family payment pay very reduced fees
b) those in reciept of Family income supplement pay reduced fees
c) those with a GP visit card get discount on fees
Your local County Childcare Committee will have a list of community childcare in your area.