I haven't misunderstood at all. I have simply stated how our local nurseries work.
Consumables are not paid on 15 hours. So a child could go 2 sessions absolutely free. When you take on 30 hours, you could do 4 sessions and have to pay Consumables for all 4 sessions. I must admit that part I don't get how 2 can be free but 4 you pay for all 4 but I don't personally use 30 hours so it's a non issue.
I was also just stating that here you can't use 30 hours to so full days. So anyone needing a nursery until say 5pm, would have to pay the £25 for 2 extra hours, even if they only took their children in at 1pm for example.
I actually already provide all nappies, wipes, suncream etc. Supplying our own food/ snacks here is not an option.
Like I've said, I don't use 30 hours. I was simply explaining how our local nurseries work with the hours being set at school times, regardless if people want to use them for those times or not, it's what is offered. I can also understand though why someone might see £25 for 2 hours as expensive when you can get 11 hours for £65. It is what it is though.
20 minutes away there's a nursery that doesn't charge consumables and let's you pick the 30 hours you need to use. So it works in a completely different way. So no, I don't think I fundamentally have no idea I am simply stating how our local ones are ran and that costs can still be high for some families. Even at reduced costs, if the hours don't work for them it can still be expensive for some. Mornings and afternoon sessions used to be an option but are not now.
If nurseries are not given a fair price by the government I do understand why there are more costs to the parent. It just isn't as simple as "30 free hours" many people think they get which is sometimes how it is advertised. Especially when it is not the same everywhere.