I’m not sure why you’re getting so much abuse OP, all you are doing is asking for financial advice.
You can still claim 15 hours, but you aren’t eligible for the extra 15 hours plus tax free childcare. Now - that ‘loss’ as you aren’t eligible might be worth ~ £6,200 a year, or ~£12,000 pre tax.
At £260,000… your options are limited, and I’d query the point of taking serious avoiding the £5.5k.
Now - at £260,000 you could put 3x years pension allowance away and still claim. But of course you can’t access this money for 30 years. Depending on if you think your salary will rise - you will lose tax relief on pensions from this point on so stuffing your pension now not a terrible idea.
With one three year old I personally wouldn’t bother at this level (albeit fair to feel aggrieved you don’t receive it). If you’re planning on a second child, I’d save pension allowances for them, as the 30 hours a year from 9 months is potentially twice as valuable for you, if that’s important to you.
If your husband is earning a lot less… are you paying for a lot more of the childcare anyway? That would be fair, and is what we do.
I don’t know why posters get so angry about people asking for financial advice - OP will be paying 50% tax on her income over £100k due to removal of personal allowance plus removal of childcare support plus 45% rate. Anyone would look to optimise their income in that position.
The greatest error with the free hours etc was just excluding the top 1-2% of earners, its universal bar the people paying about 30-40% of all tax. Is it any wonder they’re annoyed.