Claiming free nursery hours for next tax year when ineligible this year

We have an 18 month year old in nursery. Currently ineligible for free hours because I earn over £100k. However I am increasing my pension contributions so we should get the funding when the new tax year starts in April.

THE PROBLEM IS when you fill out the UK Gov form online it asked if you are earning too much THIS tax year and then doesn’t let you proceed.

As a result the nursery day I won’t be able to get the discount until the Autumn term.

This does not seem right. How do I apply for the funding code for next tax year if I am not currently eligible?