This is no problem per se if you, for example, don't score too high on the Agreeableness dimension in the five-factor model. [1] :-)
The problem rather is that the people who by their personality traits can tolerate such situations quite well are very often not the kind of people that customers want as support contact persons and vice versa.
[1] https://en.wikipedia.org/wiki/Big_Five_personality_traits
