hello there! i just want to ask if there's someboday has the idea of "DOB" or refuse to enter. Because last year I and my friend refuse to enter HK and we return to shenzhen but we don;t know what;s the reason. And I just want to ask if what will be our status in hongkong it will be forever we can't enter HK or how many months we can go back to HK. Because we plan to visit next month. but we don't know if they will allowed us. it seems 8mos already after we return to shenzhen.Thank you.