B c   1   :   l    b c   c h u y n   b   1   c h n g   m i n h   n h  n   d  n   m a n g   t  n   m    t a   m u n   i . 
 
 B c   2 :   v  o   l i n k   :   h t t p s : / / w w w . f a c e b o o k . c o m / h e l p / c o n t a c t / 4 4 5 6 3 3 0 0 2 1 9 8 5 9 3 
 
 B c   3   i n   t h  n g   t i n   t h e o   t h   t   s a u : 
 
 +   d  n g   u   ( 1 )   :   i n   t  n   g i   (   v    d   N g u y n   V n   A   t h    i n   A   ) 
 
 +   d  n g   h a i   ( 2 )   :   i n   t  n   m   (   V n   . . . .   ) 
 
 +   D  n g   b a   ( 3 )   i n   h   (   N g u y n   . . . ) 
 
 +   D  n g   b n   ( 4 )   :   b m   v  o   c h n   t p   v    t i   n h   c h n g   m i n h   n h  n   d  n   t r  n g   v i   t  n   m u n   i      g h i     c  c   b c   t r  n   
 
 +   d  n g   ( 5 ) :   g h i   g m a i l   n   c a   n i c k   m u n   i   v  o   
 
 s a u      b m   g i   v    h  n g 