Thank you all for your help, I have just recieved news that my son has sucessfully moved from DLA to PIP and it is ongoing. I read and re read your papers of what to do and after many days of checking and re checking sent the form off. I waited 2 weeks and the a letter arrived and said that a home visit would take place some 2 weeks later. Had to wait 4 weeks after the visit and then told enhanced for both and ongoing. Thank you again couldn't have done it without you.