My appointment has already been canceled TWO times...

My appointment has already been canceled TWO times (first time because that person was sick, second time because it turned out that I was scheduled with the wrong person / department!), Which means that I am already WAITING FOR THIS MONTH!

In addition, I also took my work off for free. And for the new appointment I have to free up my work again, otherwise I have to wait 3 MONTHS for June for the next possibility ?! I can't describe how ridiculous and unprofessional I find this!