So my DS used to be with a childminder 9-3pm daily. Since pre-school started in Sep he goes there 9-12 and the CM picks him up and keeps him 12-3 I.e 15 hours per week each. So as we get 30 hours free childcare you would assume I wouldn't have to pay childcare right?
Wrong.
The CM gets her 15 hours from the government but is still charging us 15hours. Her explanation is that my DS is blocking another child from all day care hence the cost. I accepted this.
My AIBU is more the holidays.
If she goes on holiday (or we do) she still charges us half the full daily rate, which is annoying me as my DS will never be there during school holidays (due to his older bro.) Bank holidays also mean we pay her for a full day 
Is this normal? She is getting paid the same but doing half the work. AIBU?