You seem to be caring for a lot of people in your life, and it is not only your granddaughter who sees you as their saviour. So, my heart goes out to you BUT there is a vulnerable child at the centre of this, and at the moment you seem to be the only person she trusts. If her parents will not help, you will have to contact the child’s school and ask to speak to someone about her, explaining the situation. If they are reluctant to talk to you, get your son to phone and explain the situation. Ideally he needs to go with you. Between you and the school, work out a plan to get your granddaughter daughter back in full- time education. At 14 she is starting exam courses, and without decent passes she will find it difficult to access further education or a job. Some local authorities have special units for school refusers where experienced staff make it easier for vulnerable pupils to go to school.There should be a contact between you,, your granddaughter and the school, specifying when and for how long she should attend, what support she will be given and what her responsibilities are. I should add that her parents are breaking the law if they do not make sure their daughter attends school. She is lucky that she has you in her life.