The detai from ECO comments:
In view of the fact that you have claimed 30 points for a valid CAS however, the CAS does not contain the mandatory informtion as specified in the guidance such as the total hours study time per week. I am not satisified that you have a valid CAS and you have not been awareded any points for the CAS. You therefore do not meet the requirements to be granted entry clearance under Tier 4 (General) Student and I refuse your application under paragraph 245ZV(b) of the immigration Rules.