Please can someone help. We bought a dog a week ago and the old owner is not co-operating in giving us the microchip details. We know the microchip is registered to her name and address as the dog was scanned at the vet when we took him for a check-up, but the vet won't give us the number because of data protection. The dog needs medical treatment but they won't do it until it's transferred into our name on the microchip. What can we do? Thanks for any help you can give.