can I get hong kong entry

hello sir I am from india. I am alredy travel to singapore, thailand, malasiya, now I have chinese visa, when I go to hong kong for travling, shoping and seeing Chinese new year hong kong immigratoin didn't allow me to enter,they send me back to india, sir plz tell can get hong kong entry after one refusal enrty, sir tell me what I do now for hong kong entry