Advise please

Day 1

Okay

Today I was pissed off badly. It is related with my English class. I am taking special courses and my class times are changable. I couldn't go today, because I had a business that I had to finish and called the office in the morning and told them that I could not come today. Since my class times are changable, we decide class time of the next class with my teacher at the end of every current class. So I called office again and asked for my teacher. She was at another class at that time, therefore I couldn't talk with her again personally. The office manager (it's a small office, therefore talking with manager is normal) told me that he will ask my teacher about time of the next lesson and inform me within this day. Almost half of the day has passed since my last call, therefore I called office again to make sure that they not forgot what I asked them. Simple reminder. Damnit! They still didn't called me today. I am soo pissed off. I called them today to remind about my situation and even thought that office manager assured me that he will call me back and haven't forgot about my situation, he still did't call me. Damn marker. I am 100% sure that something is going on here and the stuff is nasty. I don't think he really forgot about my situation, I'm % 100 sure that he deliberately didn't call. I want a revenge. I really want it. What do you guys think I could do for revenge? He is manager there, so is this situation somehow "binds" him with my situation and makes him somehow obligated in answering my requests? What can I do?

I really want that man buried in the ground! I don't really have anything "practical" in my mind for this situation, and I planning for nasty strategy, with some bitter words to tell him tomorrow. But I also want to base my speech over things that binds him in this situation, which I dont know what.

Thank you in advance.

Day 2

Heh

I talked with them today. Not with manager, but with my teacher (luckily she was there instead manager). She said that they even thought they put my phone number on agreement paper when signed me up, their computer didn't printed it out with agrrement paper. She showed me and yes I am convinced about their rightness. However, my yesterday's reaction was really bad. Not because I was wrong, but because I felt very "unarmed" in this situation. This frusturated the hell out of me when something like that happens and I see no way where I can defend my point.

For that reason, I still ask for advise as if this situation were actually real. I want to know the dynamics of this situation so I can feel more secure next time.

Thanks in advance