ACAS - https://www.acas.org.uk/getting-legal-advice  

ACAS helpline - 0300 123 1100

Contact - https://contact.org.uk/advice-and-support/work-childcare/

Disability Law Service - https://dls.org.uk/

If your issue concerns or may count as whistleblowing please see

ACAS whistleblowing at work - https://www.acas.org.uk/whistleblowing-at-work

Protect - https://protect-advice.org.uk/

For free, confidential whistleblowing advice you can