A benefits appointee is someone who acts on a person’s behalf in all social security matters.
If you are the carer for a young person with learning disabilities you were probably contacted about this by the Department of Work and Pensions when your son or daughter turned 16. The DWP will assess whether a person can manage their own affairs or not. If you are an appointee, you have to notify the DWP of any change in circumstances, deal with the banking and only use the money for the benefit of the disabled person.