The local authority has a duty to assess your child’s social care needs because children with a disability automatically meet the definition of a “child in need” under the Children Act 1989). In the case of your child, this assessment will involve identifying the services and support to meet their needs this could include direct payments, respite, family or social worker support.
The guide on Social Care in England sets out what you or your child may be entitled to and also has template letters for complaints where social services have failed to act;
https://cerebra.org.uk/download/social-care-in-england/
https://www.dorsetcouncil.gov.uk/children-families/getting-help-for-your-family
