QMAS Visa for family and employment Offer.

I am resident of India and I am holding a Passport. Last week I've got a call from Immigration and Services Co. regarding preparation of QMAS entry permit (Quality Migration Admission Scheme) which will be valid for 7 years. They are asking for a fee of certain amount and after preparation of QMAS entry permit , they will provide 100% job assurance. They told me that the companies prefer only those candidates who hold a QMAS entry permit . I want to know more about the employability in Hong Kong and QMAS entry permit . Whether I can go with the preparation or should deny this Offer. Pls guide me.