So what does AVDC do then?

I submitted a Freedom of Information inquiry to Aylesbury Vale District Council over the weekend. I just received their acknowledgment. It has this standard paragraph in the email:

Please note, AVDC is not responsible for Schools, School Transport, Social Services, Meals on Wheels, Child Services, Child Safety Orders, Care Homes, Mental Health Care, Fostering Services, Respite Care, Highways, Road Safety including Speed Enforcement, Street Furniture, Streetlights, Libraries and Trading Standards. If your request is about one of these areas please contact Buckinghamshire County Council directly. 

This seems curious to me, why not say what AVDC is responsible for...?