Good afternoon, Maiabulela.
(1) May I respectfully suggest that the "correct" spelling is "fandango."
(2) I checked the Web, and one site said that because the fandango
has such extravagant (fancy) features, it is sometimes used as a synonym
for a quarrel.
(3) Maybe Ms. Garland meant something like:
Listen, darling, we (the security guards and she) are used to having a
quarrel of this kind every time I want in, but you do not
want to let me in. I don't know much about her career, but I
hear she was "temperamental." So she may have been suspended many
times -- meaning that she had gone through this routine of "I want to get
my things & I promise to leave without causing a problem" many times.
Have a nice day!